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Check the below NCERT MCQ Questions for Class 11 Economics Chapter 1 Introduction to Micro Economics with Answers Pdf free download. MCQ Questions for Class 11 Economics with Answers were prepared based on the latest exam pattern. We have provided Introduction to Micro Economics Class 11 Economics MCQs Questions with Answers to help students understand the concept very well.

Class 11 Economics Chapter 1 Introduction to Micro Economics MCQ With Answers

Economics Class 11 Chapter 1 MCQs On Introduction to Micro Economics

Class 11 Economics Chapter 1 MCQ Question 1.
Which Economist divided Economics in two branches of micro and macro on the basis of economic activity?
(a) Marshall
(b) Ricardo
(c) Ragnar Frish
(d) None of these

Answer

Answer: (d) None of these

---

MCQ Questions For Class 11 Economics Chapter 1 Question 2.
Which of the following is studied under Micro Economics ?
(a) Individual unit
(b) Economic Aggregate
(c) National Income
(d) None of these

Answer

Answer: (d) None of these

---

Economics Class 11 MCQ Question 3.
Which of the following economic activities are included in the subject-matter of Economics?
(a) Economic Activities related to Unlimited Wants
(b) Economic Activities related to Limited Resources
(c) Both (a) and (b)
(d) None of these

Answer

Answer: (c) Both (a) and (b)

---

Class 11 Economics MCQ Question 4.
On which base structure of economic problems has been installed?
(a) Unlimited Wants
(b) Limited Resources
(c) Both (a) and (b)
(d) None of the above

Answer

Answer: (c) Both (a) and (b)

---

MCQ Questions For Class 11 Microeconomics Chapter 1 Question 5.
‘Micros’, which means ‘Small’ belongs to:
(a) Arabian word
(b) Greek word
(c) German word
(d) English word

Answer

Answer: (b) Greek word

---

Introduction To Microeconomics Class 11 MCQ Question 6.
Which of the following statement is true?
(a) Human wants are infinite
(b) Resources are limited
(c) Scarcity problem gives birth to choice .
(d) All of these

Answer

Answer: (c) Scarcity problem gives birth to choice

---

Class 11 Microeconomics Chapter 1 MCQ Question 7.
Which of the following is the salient feature of factors (or resources) ?
(a) These are limited as compared to wants
(b) These have alternative uses
(c) Both (a) and (b)
(d) None of the above

Answer

Answer: (c) Both (a) and (b)

---

Economics And Economy Class 11 MCQ Question 8.
Which is a central problem of an economy ?
(a) Allocation of Resources
(b) Optimum Utilisation of Resources
(c) Economic Development
(d) All of these

Answer

Answer: (d) All of these

---

Economics Class 11 Chapter 1 MCQ Question 9.
Which of the following Is a type of economic activities ?
(a) Production
(b) Consumption
(c) Exchange and Investment
(d) All of these

Answer

Answer: (d) All of these

---

Class 11 Microeconomics Chapter 1 MCQ Questions Question 10.
To which factor, economic problem is basically related to:
(a) Choice
(b) Consumer’s Selection
(c) Firm Selection
(d) None of these

Answer

Answer: (a) Choice

---

Ch 1 Microeconomics Class 11 MCQ Question 11.
Economy may be classified as:
(a) Capitalist
(b) Socialist
(c) Mixed
(d) All of these

Answer

Answer: (d) All of these

---

Economics MCQ Class 11 Question 12.
Which economy has a co-existence of private and public sectors ?
(a) Capitalist
(b) Socialist
(c) Mixed
(d) None of these

Answer

Answer: (c) Mixed

---

Economics Class 11 Chapter 1 MCQ Questions Question 13.
The main objective of a socialist economy is…….
(a) Maximum production
(b) Economic freedom
(c) Earning profit
(d) Maximum public welfare

Answer

Answer: (d) Maximum public welfare

---

Microeconomics Class 11 MCQ Question 14.
In which economy decisions are taken on the basis of price mechanism ?
(a) Socialist
(b) Capitalist
(c) Mixed
(d) All of these

Answer

Answer: (b) Capitalist

---

MCQ Of Economics Class 11 Question 15.
The slope of a production possibility curve falls:
(a) From left to right
(b) From right to left
(c) From top to bottom
(d) From bottom to top

Answer

Answer: (c) From top to bottom

---

Question 16.
Production Possibility Curve is:
(a) Concave to the axis
(b) Convex to the axis
(c) Parallel to the axis
(d) Vertical to the axis

Answer

Answer: (a) Concave to the axis

---

Question 17.
Mention the name of the curve which shows economic problem:
(a) Production Curve
(b) Demand Curve
(c) Indifference Curve
(d) Production Possibility Curve

Answer

Answer: (d) Production Possibility Curve

---

Question 18.
Which of the following is studied under Macro Economics ?
(a) National Income
(b) Full. Employment
(c) Total Production
(d) All of these

Answer

Answer: (d) All of these

---

Question 19.
Which of the following Is a branch of Micro Economics ?
(a) Product Price Determination
(b) Factor Price Determination
(c) Economic Welfare
(d) All of these

Answer

Answer: (d) All of these

---

Question 20.
Which of the following is a source of production ?
(a) Land
(b) Labour
(c) Capital
(d) All of these

Answer

Answer: (d) All of these

---

Question 21.
Who said, “Economics is a science of wealth.”
(a) Marshall
(b) Robbins
(c) Adam Smith
(d) J.K. Mehta

Answer

Answer: (c) Adam Smith

---

Question 22.
“Economics is a science of logic.’’ Who said it ?
(a) Hicks
(b) Keynes
(c) Robbins
(d) Marshall

Answer

Answer: (c) Robbins

---

Question 23.
Micro Economics includes:
(a) Individual unit
(b) Small units
(c) Individual price determination
(d) All of these

Answer

Answer: (d) All of these

---

Question 24.
Who was the father of Economics ?
(a) I. B. Say
(b) Malthus
(c) Adam Smith
(d) Joan Robinson

Answer

Answer: (c) Adam Smith

---

Question 25.
Who gave the definition of Economics related to welfare ?
(a) Adam Smith
(b) Marshall
(c) Robbins
(d) Samuelson

Answer

Answer: (b) Marshall

---

Question 26.
The word ‘micro’ was firstly used by:
(a) Marshall
(b) Boulding
(c) Keynes
(d) Ragnar Frish

Answer

Answer: (d) Ragnar Frish

---

Question 27.
According to whom, Economics is a science of human welfare ?
(a) A Marshall
(b) Paul Samuelson
(c) J. S. Mill
(d) Adam Smith

Answer

Answer: (a) A Marshall

---

Question 28.
Which of the following is not a factor of production ?
(a) Land
(b) Labour
(c) Money
(d) Capital

Answer

Answer: (c) Money

---

Question 29.
The central problem of an economy is:
(a) What to produce ?
(b) How to produce ?
(c) How to distribute produced goods ?
(d) All of these

Answer

Answer: (d) All of these

---

Question 30.
Consumer behaviour is studied in:
(a) Micro Economics
(b) Income Theory
(c) Mac o Economics
(d) None of these

Answer

Answer: (a) Micro Economics

---

Question 31.
Indian economy is:
(a) Centrally planned economy
(b) Market economy
(c) Mixed economy
(d) None of these.

Answer

Answer: (c) Mixed economy

---

Question 32.
Who used the word ‘micro’ for the first time:
(a) Marshall
(b) Boulding
(c) Keynes
(d) Ragnar Frisch

Answer

Answer: (d) Ragnar Frisch

---

Question 33.
Who said economics is the ‘Science of wealth:
(a) Prof. Robbins
(b) Prof. J.K. Mehta
(c) Prof. Marshall
(d) Prof. Adam Smith

Answer

Answer: (d) Prof. Adam Smith

---

Question 34.
What is the shape of production possibility curve:
(a) Concave to the origin
(b) Concave
(c) Straight line
(d) None of the above.

Answer

Answer: (a) Concave to the origin

---

Question 35.
The reason for downward shape of production possibility curve is:
(a) Increasing opportunity cost
(b) Decreasing opportunity cost
(c) Same opportunity cost
(d) Negative opportunity cost

Answer

Answer: (b) Decreasing opportunity cost

---

Question 36.
The point of optimum utilization of resources lies on which side of PPC curve:
(a) Towards left
(b) Towards right
(c) Inside
(d) Upwards

Answer

Answer: (d) Upwards

---

Fill in the blanks:

1. Every person has ………………… quantity of goods.

Answer

Answer: Few

---

2. ……………………economics is the study of individual economic units.

Answer

Answer: Micro-economics

---

3. Opportunity cost ………………….. in production list.

Answer

Answer: Changes

---

4. Micro and Macro-economics are ……………………… to each other.

Answer

Answer: Complement

---

5. Economic growth is related to ………………………… economics.

Answer

Answer: Macro

---

6. Economy is a group of ………………….. units.

Answer

Answer: Production

---

7. Mixed economy is composed of ………………………. and …………………………

Answer

Answer: Socialism, Capitalism

---

8. The goods and services which help in the production of other goods and services are ………………………. goods.

Answer

Answer: Intermediate

---

State true or false:

1. Production possibility curve is convex towards main point.

Answer

Answer: False

---

2. Central problem in the capitalist economy is solved by price mechanism.

Answer

Answer: True

---

3. An economy can be capitalist, socialist or opportunist.

Answer

Answer: False

---

4. Today all economics of the world are almost mixed economics.

Answer

Answer: True

---

5. Macro-economics is the study of the problems of unemployment, price inflation etc.

Answer

Answer: True

---

6. In socialism, the feeling of personal profit is prominent.

Answer

Answer: False

---

Match the following:

‘A’	‘B’
1. The mechanism of micro-economics	(a) Capitalist economy
2. Basic financial problem	(b) All resources are efficiently used
3. No state inteference	(c) Price analysis
4. No restrictions on trade	(d) Limitation and election
5. Main assumptions of production possibility curve	(e) Open economy.

Answer

Answer:

‘A’	‘B’
1. The mechanism of micro-economics	(c) Price analysis
2. Basic financial problem	(d) Limitation and election
3. No state inteference	(a) Capitalist economy
4. No restrictions on trade	(e) Open economy.
5. Main assumptions of production possibility curve	(b) All resources are efficiently used

---

We hope the given NCERT MCQ Questions for Class 11 Economics Chapter 1 Introduction to Micro Economics with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Economics Introduction to Micro Economics MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 11 Microeconomics MCQ:

• Introduction to Micro Economics Class 11 MCQ
• Theory of Consumer Behaviour Class 11 MCQ
• Production and Costs Class 11 MCQ
• The Theory of the Firm under Perfect Competition Class 11 MCQ
• Market Equilibrium Class 11 MCQ
• Non-competitive Markets Class 11 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 14 Chemical Effects of Electric Current with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Chemical Effects of Electric Current Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 14 Chemical Effects of Electric Current to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 14 MCQ With Answers

Science Class 8 Chapter 14 MCQs On Chemical Effects of Electric Current

Choose the correct option.

Chemical Effects Of Electric Current Class 8 MCQ Question 1.
Which of the following is a bad conductor of electricity?
(a) Distilled water
(b) Silver nitrate
(c) Sulphuric acid
(d) Copper sulphate

Answer

Answer: (a) Distilled water

---

Class 8 Science Chapter 14 MCQ Question 2.
Which of the following does not conduct electricity?
(a) Sugar solution
(b) Vinegar solution
(c) Lemon juice solution
(d) Caustic soda solution

Answer

Answer: (a) Sugar solution

---

Chemical Effect Of Electric Current Class 8 MCQ Question 3.
An electric current can produce
(a) heating effect
(b) chemical effect
(c) magnetic effect
(d) all of these

Answer

Answer: (d) all of these

---

Chemical Effects Of Electric Current MCQ Question 4.
Pure or distilled water is a
(a) poor conductor
(b) good conductor
(c) both (a) and (b)
(d) none of these

Answer

Answer: (a) poor conductor

---

Class 8 Chemical Effects Of Electric Current MCQ Question 5.
Which of the following is a good conductor?
(a) Brick
(b) Steel
(c) Plastic
(d) Cotton

Answer

Answer: (b) Steel

---

MCQ On Chemical Effects Of Electric Current Question 6.
Polythene is
(a) a conductor
(b) an insulator
(c) both (a) and (b)
(d) none of these

Answer

Answer: (b) an insulator

---

Class 8 Science Ch 14 MCQ Question 7.
Electroplating is based on
(a) heating effect of electricity
(b) chemical effect of electricity
(c) physical effect of electricity
(d) magnetic effect of electricity

Answer

Answer: (b) chemical effect of electricity

---

MCQ Questions On Chemical Effects Of Electric Current Class 8 Question 8.
Copper is
(a) a good conductor
(b) an insulator
(c) both (a) and (b)
(d) none of these

Answer

Answer: (a) a good conductor

---

Ch 14 Science Class 8 MCQ Question 9.
Waste from an electroplating factory must be disposed off
(a) in the nearby river
(b) in the nearby pond
(c) in the nearby cornfield
(d) according to the disposal guidelines of Waste Management Bodies

Answer

Answer: (d) according to the disposal guidelines of Waste Management Bodies

---

Class 8 Science Chemical Effects Of Electric Current MCQ Question 10.
An electrolyte is
(a) a metal
(b) a liquid that conducts current
(c) a non-metal
(d) none of these

Answer

Answer: (b) a liquid that conducts current

---

Chemical Effect Of Electric Current MCQ Question 11.
Flow of electron is called
(a) electrolyte
(b) electroplating
(c) electrodes
(d) electric current

Answer

Answer: (d) electric current

---

MCQ Questions For Class 8 Science Chapter 14 Question 12.
Which is not a non-electrolyte?
(a) Ethyl alcohol
(b) Sodium chloride
(c) Urea
(d) Sodium solution

Answer

Answer: (b) Sodium chloride

---

MCQ Questions For Class 8 Science Chemical Effects Of Electric Current Question 13.
An electric lamp glows due to
(a) heating effect
(b) magnetic effect
(c) chemical effect
(d) physical effect

Answer

Answer: (a) heating effect

---

Class 8 Science Chapter 14 Extra Questions MCQ Question 14.
Electroplating prevents
(a) corrosion
(b) passing of current
(c) dissociation
(d) shining

Answer

Answer: (a) corrosion

---

MCQs On Chemical Effects Of Electric Current Class 8 Question 15.
Which of the following is not used for electroplating metal articles?
(a) Nickel
(b) Silver
(c) Chromium
(d) Sodium

Answer

Answer: (d) Sodium

---

Question 16.
Iron objects can be protected by electroplating them with
(a) chromium
(b) nickel
(c) zinc
(d) all of these

Answer

Answer: (d) all of these

---

Question 17.
In LEDs, the longer lead (wire) is always connected to the _______ terminal
(a) negative
(b) neutral
(c) positive
(d) Any terminal

Answer

Answer: (c) positive

---

Question 18.
Tap water is a good conductor of electricity while distilled water is not because
(a) Tap water contain salts
(b) Distilled water do not contain salt
(c) Only (a) is correct
(d) Both (a) & (b) is correct

Answer

Answer: (b) Distilled water do not contain salt

---

Question 19.
When electrodes are immersed in water and electricity passed, the bubbles formed on the positive terminal is actually _______ gas.
(a) Hydrogen
(b) Carbon dioxide
(c) Oxygen
(d) Nitrogen

Answer

Answer: (c) Oxygen

---

Question 20.
When electrodes are immersed in water and electricity passed, the bubbles formed on the negative terminal is actually _______ gas.
(a) Hydrogen
(b) Carbon dioxide
(c) Oxygen
(d) Nitrogen

Answer

Answer: (a) Hydrogen

---

Question 21.
Why do we add little dilute sulphuric acid to copper sulphate solution during electroplating?
(a) To increase acidity
(b) To increase conductivity
(c) So that the colour becomes more prominent
(d) To burn copper sulphate

Answer

Answer: (b) To increase conductivity

---

Question 22.
A coating of _________is deposited on iron to protect it from corrosion and formation of rust
(a) copper
(b) aluminium
(c) Zinc
(d) silver

Answer

Answer: (c) Zinc

---

Question 23.
Chromium plating is done on many objects such as car parts, bath taps, kitchen gas stove etc. Why?
(a) It does not corrode but prevents scratches
(b) It looks beautiful
(c) It costs less
(d) Articles can be sold at higher price

Answer

Answer: (a) It does not corrode but prevents scratches

---

Question 24.
The process of depositing a layer of any desired metal on another material by means of electricity is called ___________.
(a) Electric plating
(b) Electroplating
(c) Electric depositing
(d) None of the above

Answer

Answer: (b) Electroplating

---

Question 25.
Some liquids are good conductors of electricity and some are poor conductors. Which one is a poor conductor?
(a) Acidic solution
(b) Alkaline solution
(c) Common Salt solution
(d) Distilled water

Answer

Answer: (d) Distilled water

---

Question 26.
Tin cans, used for storing food, are made by electroplating tin onto iron. Why?
(a) Tin gives a shiny appearance
(b) To make the vessel cheap
(c) Tin is less reactive than iron.
(d) To make the vessel lighter

Answer

Answer: (c) Tin is less reactive than iron.

---

Match the items given in column I suitably with those given in column II.

Column I	Column II
1. Closed path	(a) Good conductor
2. LED	(b) Deflection of compass
3. Carbon rod	(c) Positively charged ion
4. Galvanisation	(d) Poor conductor of electricity
5. Distilled water	(e) Coating with zinc
6. Salt solution	(f) Electrodes
7. Cation	(g) Light emitting diodes
8. Magnetic effect of current	(h) Electric circuit
9. Chromium	(i) Negatively charged ion
10. Anion	(j) Electroplating

Answer

Answer:

Column I	Column II
1. Closed path	(h) Electric circuit
2. LED	(g) Light emitting diodes
3. Carbon rod	(f) Electrodes
4. Galvanisation	(e) Coating with zinc
5. Distilled water	(d) Poor conductor of electricity
6. Salt solution	(a) Good conductor
7. Cation	(c) Positively charged ion
8. Magnetic effect of current	(b) Deflection of compass
9. Chromium	(j) Electroplating
10. Anion	(i) Negatively charged ion

---

Fill in the blanks with suitable word/s.

1. Substances that conduct electricity are called ___________.

Answer

Answer: Conductors

---

2. Substances that do not conduct electricity are called ___________.

Answer

Answer: insulator

---

3. A cation has ___________ charge.

Answer

Answer: positive

---

4. Some liquids are ___________ conductors of electricity and some are ___________ conductors of electricity.

Answer

Answer: good, poor

---

5. Distilled water is an ___________.

Answer

Answer: insulator

---

6. Distilled water when mixed with salts becomes a ___________ conductor of electricity.

Answer

Answer: good

---

7. Light emitting diodes (LED) glow even when a ___________ electric current flows through it.

Answer

Answer: weak

---

8. The passage of an electric current through a conducting solution causes ___________.

Answer

Answer: chemical reaction

---

9. Change in colour is an example of the ___________ effect of current.

Answer

Answer: chemical

---

10. There are ___________ wires attached to an LED.

Answer

Answer: two

---

11. In an LED, the longer lead is attached to the ___________ terminal of the battery and the shorter lead to the ___________ terminal.

Answer

Answer: positive, negative

---

12. Chromium has a ___________ appearance.

Answer

Answer: shiny

---

13. Distilled water is made by removing all ___________.

Answer

Answer: impurities

---

14. Iron tends to ___________ and ___________.

Answer

Answer: corrode, rust

---

15. A coating of ___________ is deposited on iron to protect it from corrosion and formation of rust.

Answer

Answer: zinc

---

16. An electric lamp glows due to ___________ effect of electric current.

Answer

Answer: heating

---

17. Electrodes are ___________.

Answer

Answer: conductors

---

18. The deflection in ___________ shows that current is passing.

Answer

Answer: magnetic compass

---

19. ___________does not corrode easily.

Answer

Answer: Chromium

---

20. An electrolyte is a ___________.

Answer

Answer: liquid

---

State whether the given statements are true or false.

1. Rubber is a good conductor of electricity.

Answer

Answer: False

---

2. Plastics are poor conductor of electricity.

Answer

Answer: True

---

3. All liquids conduct electricity.

Answer

Answer: False

---

4. Distilled water is free of salt.

Answer

Answer: True

---

5. Pure water conducts electricity.

Answer

Answer: False

---

6. Most liquids that conducts electricity are solutions of acids, bases and salts.

Answer

Answer: True

---

7. Electroplating is based on magnetic effect of electricity.

Answer

Answer: False

---

8. Small amount of some mineral salts are naturally present in water.

Answer

Answer: True

---

9. Chromium is carcinogenic.

Answer

Answer: True

---

10. An electric bulb glows due to chemical effect of electricity.

Answer

Answer: False

---

11. Distilled water when mixed with salt conducts electricity.

Answer

Answer: True

---

12. LED is an electric bulb which is used in a tester.

Answer

Answer: True

---

13. Deflection in compass needle is due to magnetic effect of current.

Answer

Answer: True

---

14. When electric current is passed through the copper sulphate solution, copper and sulphate ions are dissociated.

Answer

Answer: True

---

15. In an LED bulb, the shorter lead is connected to the positive terminal of the battery.

Answer

Answer: False

---

16. Electric current produces a magnetic effect.

Answer

Answer: True

---

17. Some liquids are good conductors of electricity and some are poor conductors of electricity.

Answer

Answer: True

---

18. Chromium has a shiny appearance.

Answer

Answer: True

---

19. Jewellery makers electroplate silver and gold on expensive metals.

Answer

Answer: False

---

20. Electroplating wastes are useful to human health and environment.

Answer

Answer: False

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 14 Chemical Effects of Electric Current with Answers Pdf free download will help you. If you have any queries regarding Chemical Effects of Electric Current CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 11 Force and Pressure with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Force and Pressure Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 11 Force and Pressure to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 11 MCQ With Answers

Science Class 8 Chapter 11 MCQs On Force and Pressure

Choose the correct option.

Force And Pressure Class 8 MCQ Question 1.
The pressure which is exerted by air around us is known as
(a) force
(b) atmospheric pressure
(c) muscular force
(d) friction

Answer

Answer: (b) atmospheric pressure

---

Class 8 Science Chapter 11 MCQ Question 2.
Force acting on per unit area is called
(a) non-contact forces
(b) contact forces
(c) force
(d) pressure

Answer

Answer: (d) pressure

---

Class 8 Force And Pressure MCQ Question 3.
A ___________ exerted by an object on another is a force.
(a) Push or pull
(b) Contact or non-contact force
(c) Pressure
(d) Magnitude

Answer

Answer: (a) Push or pull

---

MCQ On Force And Pressure Class 8 Question 4.
The force exerted by the earth to pull the object towards itself is called
(a) electrostatic force
(b) gravitational force
(c) muscular force
(d) contact force

Answer

Answer: (b) gravitational force

---

Class 8 Science Ch 11 MCQ Question 5.
Muscular force is also called ___________ force.
(a) non-contact
(b) contact
(c) gravitational
(d) magnetic

Answer

Answer: (b) contact

---

MCQ Of Force And Pressure Class 8 Question 6.
The force exerted by a charged body on another char
(a) gravitational force
(b) electrostatic force
(c) non-contact force
(d) contact force

Answer

Answer: (b) electrostatic force

---

Ch 11 Science Class 8 MCQ Question 7.
Force changes the
(a) motion of body
(b) speed of body
(c) shape of body
(d) all of these

Answer

Answer: (d) all of these

---

MCQ Questions For Class 8 Science Chapter 11 Question 8.
The force exerted by our muscle is called
(a) electrostatic force
(b) muscular force
(c) gravitational force
(d) non-contact force

Answer

Answer: (b) muscular force

---

Force And Pressure MCQ Class 8 Question 9.
1 kilogram weight is equal to
(a) 98 N
(b) 9.8 N
(c) 0.98 N
(d) 0.098 N

Answer

Answer: (b) 9.8 N

---

Class 8 Chapter 11 Science MCQ Question 10.
A spring balance is used for measuring
(a) mass
(b) weight
(c) pressure
(d) speed

Answer

Answer: (b) weight

---

Class 8 Science Force And Pressure MCQ Question 11.
Two boys A and B are applying force on a block. If the block moves towards the boy A, which one of the following statements is correct?
(a) Magnitude of force applied by A is greater than that of B.
(b) Magnitude of force applied by A is smaller than that of B.
(c) Net force on the block is towards B.
(d) Magnitude of force applied by A is equal to that of B.

Answer

Answer: (b) Magnitude of force applied by A is smaller than that of B.

---

Force And Pressure Class 8 MCQ With Answers Question 12.
When two forces act in opposite directions, then net force acting is the
(a) sum of two forces
(b) difference between two forces
(c) both of these
(d) none of these

Answer

Answer: (b) difference between two forces

---

Ncert Class 8 Science Chapter 11 MCQ Question 13.
The strength of force is expressed by its
(a) weight
(b) mass
(c) magnitude
(d) longitudinal force

Answer

Answer: (c) magnitude

---

MCQ Force And Pressure Class 8 Question 14.
Leaves fall down on the ground due to
(a) electrostatic force
(b) magnetic force
(c) gravitational force
(d) muscular force

Answer

Answer: (c) gravitational force

---

Class 8 Ch 11 Science MCQ Question 15.
State of motion is described by
(a) Position of rest
(b) Position of motion
(c) Both by the state of rest or motion
(d) None of these

Answer

Answer: (c) Both by the state of rest or motion

---

Question 16.
When the hammer strikes the gong of an electric bell, which of the following force is responsible for the movement of hammer?
(a) Gravitational force alone
(b) Magnetic force alone
(c) Electrostatic force alone
(d) Frictional force alone

Answer

Answer: (c) Electrostatic force alone

---

Question 17.
During dry weather, while combing hair, sometimes we experience hair flying apart. The force respon¬sible for this is
(a) force of gravity
(b) force of friction
(c) electrostatic force
(d) magnetic force

Answer

Answer: (c) electrostatic force

---

Question 18.
A container is filled with water as shown in the given figure. Which of the following statements is correct about pressure of water?

(a) Pressure at A > Pressure at B > Pressure at C
(b) Pressure at A = Pressure at B = Pressure at C
(c) Pressure at A < Pressure at B > Pressure at C
(d) Pressure at A < Pressure at B < Pressure at C

Answer

Answer: (d) Pressure at A < Pressure at B < Pressure at C

---

Question 19.
Two objects repel each other. This repulsion could be due to
(a) frictional force only
(b) electrostatic force only
(c) magnetic force only
(d) either a magnetic or an electrostatic force

Answer

Answer: (d) either a magnetic or an electrostatic force

---

Question 20.
Which one of the following forces is a contact force?
(a) Force of gravity
(b) Magnetic force
(c) Force of friction
(d) Electrostatic force

Answer

Answer: (c) Force of friction

---

Question 21.
A brick is kept in three different ways on a table as shown in given figure. The pressure exerted by the brick on the table will be

(a) maximum in position A
(b) maximum in position C
(c) maximum in position B
(d) equal in all cases

Answer

Answer: (a) maximum in position A

---

Question 22.
A push or pull on an object is called
(a) Pressure
(b) Push-pull
(c) Force
(d) All of the above

Answer

Answer: (c) Force

---

Question 23.
If two forces act in the opposite directions on an object, the net force acting on it is the
(a) Sum of the two forces
(b) difference between the two forces
(c) Multiplication of the two forces
(d) Division of the two forces

Answer

Answer: (b) difference between the two forces

---

Question 24.
Which of the following is proper example(s) to explain that force on an object may change its shape
(a) A ball of dough rolled into chapati
(b) Pressing a rubber ball kept on table
(c) Making model using clay
(d) All of the above

Answer

Answer: (d) All of the above

---

Question 25.
A ball rolling on the ground slows down and finally stops. This is because of
(a) Force
(b) Less force applied
(c) Friction
(d) None of the above

Answer

Answer: (c) Friction

---

Question 26.
Force of friction always acts on moving objects and its direction shall be ____
(a) On any direction
(b) Along the direction of motion
(c) Perpendicular to the direction of motion
(d) Opposite to the direction of motion

Answer

Answer: (c) Perpendicular to the direction of motion

---

Question 27.
If In a tug-o-war, when two teams are pulling a rope, and the rope does not move towards any team, it implies that
(a) Equal force is being applied in the same direction
(b) Equal Force is being applied in opposite direction
(c) No force is applied in any direction
(d) Cannot be explained

Answer

Answer: (b) Equal Force is being applied in opposite direction

---

Question 28.
An example of a non- contact force is
(a) Force exerted by us to lift a bucket
(b) Push a stationary car
(c) Force exerted by magnet
(d)  Hit a cricket ball for a 6 run

Answer

Answer: (c) Force exerted by magnet

---

Question 29.
Pressure =
(a) Area / force on which it acts
(b) force / area on which it acts
(c) Volume / force on which it acts
(d) Force / volume on which it acts

Answer

Answer: (b) force / area on which it acts

---

Question 30.
Gravity is
(a) Repulsive
(b) Attraction + Repulsive force
(c) Attractive force
(d) Not a force

Answer

Answer: (c) Attractive force

---

Question 31.
A batsman hits the ball for a boundary past the bowler i.e. four runs. The batsman thus
(a) Changes the direction & speed of the ball
(b) Does not change the direction but speed only
(c) Does not change the speed but direction only
(d) Does not change either direction or speed

Answer

Answer: (a) Changes the direction & speed of the ball

---

Match the items given in column I suitably with those given in column II.

Column I	Column II
1. Pressure	(a) Fluid pressure
2. Barometer	(b) Unit of pressure
3. Newton	(c) Non-contact force
4. Manometer	(d) Force/Area
5. Pascal	(e) Unit of force
6. Magnetic force	(f) Net force acting on a body
7. 1 kilogram	(g) Atmospheric pressure
8. Resultant force	(h) 9.8 N
9. Frictional force	(i) Down the column
10. Pressure increases	(j) Contact force

Answer

Answer:

Column I	Column II
1. Pressure	(d) Force/Area
2. Barometer	(g) Atmospheric pressure
3. Newton	(e) Unit of force
4. Manometer	(a) Fluid pressure
5. Pascal	(b) Unit of pressure
6. Magnetic force	(c) Non-contact force
7. 1 kilogram	(h) 9.8 N
8. Resultant force	(f) Net force acting on a body
9. Frictional force	(j) Contact force
10. Pressure increases	(i) Down the column

---

Fill in the blanks with suitable word/s.

1. We ___________ the bucket to take out water from well.

Answer

Answer: pull

---

2. The strength of a force is usually expressed by its ___________.

Answer

Answer: magnitude

---

3. ___________ force is the force resulting due to the action of muscles.

Answer

Answer: Muscular

---

4. The envelop of air all around us is called ___________.

Answer

Answer: atmosphere

---

5. To open a door we or ___________ the door.

Answer

Answer: push, pull

---

6. Force of friction is an example of ___________ force.

Answer

Answer: contact

---

7. Force ___________ is called pressure.

Answer

Answer: per unit area

---

8. Force has ___________ as well as direction.

Answer

Answer: magnitude

---

9. Fruits fall ___________ due to the force of gravity.

Answer

Answer: downward

---

10. The body at rest is called ___________ body.

Answer

Answer: stationary

---

11. ___________ and ___________ forces are the two kinds of forces.

Answer

Answer: Contact, non-contact

---

12. Force exerted by magnet is called ___________ force.

Answer

Answer: magnetic

---

13. We apply force on ___________ while walking.

Answer

Answer: ground

---

14. Force is ___________ to pressure.

Answer

Answer: directly proportional

---

15. The ___________ is measured by an instrument called barometer.

Answer

Answer: atmospheric pressure

---

State whether the given statements are true or false.

1. Force applied on an object in opposite directions add to one another.

Answer

Answer: False

---

2. Pressure does not depend on area of contact.

Answer

Answer: False

---

3. A force can change the state of motion of an object.

Answer

Answer: True

---

4. Force cannot change the speed of an object.

Answer

Answer: False

---

5. Atmospheric pressure is less at higher altitudes.

Answer

Answer: True

---

6. Force of gravity is a contact force.

Answer

Answer: False

---

7. Muscular force is also known as contact force.

Answer

Answer: True

---

8. Pascal is the unit of force.

Answer

Answer: False

---

9. To move an object faster it has to be pushed or pulled repeatedly.

Answer

Answer: True

---

10. Magnitude is the strength of force.

Answer

Answer: True

---

11. Force can change the shape of an object.

Answer

Answer: True

---

12. At least two objects must interact for a force to come into play.

Answer

Answer: True

---

13. Magnetic force is a non-contact force.

Answer

Answer: True

---

14. An apple from a tree falls on the ground due to the force of gravity.

Answer

Answer: True

---

15. Newton is the unit of force.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 11 Force and Pressure with Answers Pdf free download will help you. If you have any queries regarding Force and Pressure CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Reaching the Age of Adolescence Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 10 Reaching the Age of Adolescence to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 10 MCQ With Answers

Science Class 8 Chapter 10 MCQs On Reaching the Age of Adolescence

Choose the correct option in the following questions:

Reaching The Age Of Adolescence Class 8 MCQ Question 1.
Adolescence is the period of
(a) 5 to 10 years
(b) 11 to 19 years
(c) 22 to 28 years
(d) 30 to 40 years

Answer

Answer: (b) 11 to 19 years

---

Class 8 Science Chapter 10 MCQ Question 2.
When a sperm having X-chromosome fuses with the ovum, the child born will be
(a) male
(b) female
(c) male as well as female twin
(d) it depends on the chance of fusion

Answer

Answer: (b) female

---

Class 8 Science Ch 10 MCQ Question 3.
How many pairs of Chromosomes are found in nuclei of their cells?
(a) 22 pairs
(b) 23 pairs
(c) 24 pairs
(d) 25 pairs

Answer

Answer: (b) 23 pairs

---

MCQ Questions For Class 8 Science Chapter 10 Question 4.
Children gain height during
(a) adolescence
(b) endocrine
(c) balanced food
(d) menarche

Answer

Answer: (a) adolescence

---

Ch 10 Science Class 8 MCQ Question 5.
Testes secrete
(a) thyroxin
(b) estrogen
(c) testosterone
(d) iodine

Answer

Answer: (c) testosterone

---

Class 8 Chapter 10 Science MCQ Question 6.
Adam’s apple is
(a) enlarged larynx
(b) mammary glands
(c) apple of adam
(d) red apple

Answer

Answer: (a) enlarged larynx

---

Ncert Class 8 Science Chapter 10 MCQ Question 7.
The chemical substances which are secreted from endocrine glands are called
(a) puberty
(b) hormones
(c) estrogen
(d) adolescence

Answer

Answer: (b) hormones

---

Class 8 Ch 10 Science MCQ Question 8.
Out of these which one determines the sex of the baby?
(a) Hormones
(b) Chloroplast
(c) Chromosomes
(d) Pituitary gland

Answer

Answer: (c) Chromosomes

---

Chapter 10 Science Class 8 MCQ Question 9.
What is the stoppage of menstruation called?
(a) Menarche
(b) Menopause
(c) Gametes
(d) Insulin

Answer

Answer: (b) Menopause

---

Adolescence Class 8 MCQ Question 10.
Which hormone is secreted by adrenal glands?
(a) Adrenalin
(b) Insulin
(c) Testosterone
(d) Estrogen

Answer

Answer: (a) Adrenalin

---

Science Class 8 Chapter 10 MCQ Question 11.
Reproduction age in women starts when their
(a) menstruation starts
(b) breasts start developing
(c) body weight increases
(d) height increases

Answer

Answer: (a) menstruation starts

---

Class 8 Reaching The Age Of Adolescence MCQ Question 12.
Which is male gonads?
(a) Hair
(b) Chest
(c) Moustache
(d) Testis

Answer

Answer: (d) Testis

---

Chapter 10 Class 8 Science MCQ Question 13.
The beginning of menstruation at puberty is called
(a) ovulation
(b) menstruation
(c) menarche
(d) menopause

Answer

Answer: (c) menarche

---

Class 8 Science Ch 10 MCQ Questions Question 14.
In males, the sex chromosome consists
(a) one X and one Y
(b) both X and X
(c) both Y and Y
(d) one M and one X

Answer

Answer: (a) one X and one Y

---

Ch 10 Class 8 Science MCQ Question 15.
Production of thyroxin requires
(a) sodium
(b) magnesium
(c) iodine
(d) bromine

Answer

Answer: (c) iodine

---

Question 16.
The period of life, when the body undergoes changes, leading to reproductive maturity, is called
(a) childhood
(b) adolescence
(c) Grown up
(d) Old age

Answer

Answer: (b) adolescence

---

Question 17
The human body undergoes several changes during adolescence. These changes mark the onset of
(a) Puberty
(b) Prematurity
(c) Post adolescence
(d) ageing

Answer

Answer: (a) Puberty

---

Question 18.
Adam’s apple is prominent in
(a) Boys of any age
(b) Adolescent girls
(c) Girls of any age
(d) Adolescent boys

Answer

Answer: (d) Adolescent boys

---

Question 19.
Larynx is also called
(a) Voice box
(b) Sound box
(c) Black box
(d) All of the above

Answer

Answer: (a) Voice box

---

Question 20.
Acne and pimples on the face is due to secretion of
(a) bile from liver
(b) Oil glands during puberty
(c) Enzymes in the digestive tract
(d) Tear from tear glands

Answer

Answer: (b) Oil glands during puberty

---

Question 21.
Testosterone is a hormone found in human ___
(a) Children
(b) males and females
(c) Females only
(d) Males only

Answer

Answer: (d) Males only

---

Question 22.
The first menstrual flow is called
(a) Menstruation
(b) Mensuration
(c) Menarche
(d) Menopause

Answer

Answer: (c) Menarche

---

Question 23.
Menopause occurs at the age of
(a) 10-12 years in boys
(b) 45-50 years in men
(c) 10-12 years in girls
(d) 45-50 years in women

Answer

Answer: (d) 45-50 years in women

---

Question 24.
When a sperm containing Y chromosome fertilizes an egg with X chromosome, the zygote develops into a _____ child
(a) Female
(b) Either a male or female
(c) Male
(d) No child

Answer

Answer: (c) Male

---

Question 25.
The change from larvae to adult is called
(a) Metabolism
(b) Metamorphosis
(c) Metastasis
(d) Morphology

Answer

Answer: (b) Metamorphosis

---

Match the following items given in Column ‘A with that in Column B’:

Column A	Column B
(i) Pituitary gland	(a) Thyroxine
(ii) Thyroid gland	(b) Adrenalin
(iii) Adrenal gland	(c) Insulin
(iv) Pancreas	(d) Master gland
(v) XX chromosomes	(e) Boy
(vi) XY chromosomes	(f) Girl

Answer

Answer:

Column A	Column B
(i) Pituitary gland	(d) Master gland
(ii) Thyroid gland	(a) Thyroxine
(iii) Adrenal gland	(b) Adrenalin
(iv) Pancreas	(c) Insulin
(v) XX chromosomes	(f) Girl
(vi) XY chromosomes	(e) Boy

---

Fill in the blanks with the appropriate words:

1. Children gain height during …………..

Answer

Answer: adolescence

---

2. The onset of ………….. and ………….. of reproductive parts are controlled by hormones.

Answer

Answer: puberty, maturity

---

3. Hormones are secretions of ………….. glands.

Answer

Answer: endocrine

---

4. Pancreas secretes ………….., thyroid produces ………….. and adrenals produce …………..

Answer

Answer: insulin, thyroxine, adrenalin

---

5. Testosterone is the ………….. hormone.

Answer

Answer: male

---

6. ………….. of the unborn child depends on whether the zygote has XX or XY chromosomes.

Answer

Answer: Sex

---

7. It is important to eat ………….. and maintain personal hygiene during adolescence.

Answer

Answer: balanced food.

---

State whether the statements given below are True or False:

1. Hormones are secreted from endocrine gland.

Answer

Answer: True

---

2. Adolescence period cover 30-35 years of age.

Answer

Answer: False

---

3. 23 pair of chlorosomes are found in nuclei of the cells.

Answer

Answer: True

---

4. Testes are responsible for production of sperms.

Answer

Answer: True

---

5. Stoppage of menstruation is called adolescence.

Answer

Answer: False

---

6. Mother is responsible for the sex determination of the baby.

Answer

Answer: False

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 10 Reaching the Age of Adolescence with Answers Pdf free download will help you. If you have any queries regarding Reaching the Age of Adolescence CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 16 Light with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Light Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 16 Light to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 16 MCQ With Answers

Science Class 8 Chapter 16 MCQs On Light

Choose the correct option in the following questions:

Light Class 8 MCQ Question 1.
A smooth shining surface, which rebounds the light back in same or in different direction, is called
(a) a mirror
(b) a lens
(c) reflection of light
(d) point of incidence

Answer

Answer: (a) a mirror

---

Light MCQ Class 8 Question 2.
Beam of light striking the reflecting surface is called
(a) reflecting ray
(b) incident ray
(c) refracted ray
(d) normal ray

Answer

Answer: (b) incident ray

---

Class 8 Science Chapter 16 MCQ Question 3.
Band of seven colours is called
(a) VIBGYOR
(b) spectrum
(c) dispersion
(d) reflection

Answer

Answer: (b) spectrum

---

MCQ On Light Class 8 Question 4.
Front balged part of the eyeball is called
(a) cornea
(b) choroid
(c) pupil
(d) retina

Answer

Answer: (a) cornea

---

Class 8 Light MCQ Question 5.
Which one of the following statements is correct regarding rods and cones in the human eye?
(a) Cones are sensitive to dim light
(b) Cones are sensitive to bright light
(c) Rods are sensitive to bright light
(d) Rods can sense colour

Answer

Answer: (b) Cones are sensitive to bright light

---

MCQ Of Light Class 8 Question 6.
In case of reflection of light, the angle of incidence (i) and the angle of reflection (r) are related as
(a) i = r
(b) i < r
(c) i > r
(d) no definite relation

Answer

Answer: (a) i = r

---

Class 8 Science Light MCQ Question 7.
Name the type of mirror used as a backview mirror.
(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Any of these

Answer

Answer: (c) Convex mirror

---

Class 8 Science Ch 16 MCQ Question 8.
Visually impaired people can read and write using
(a) electronic writer
(b) digital pens
(c) braille system
(d) hearing aids

Answer

Answer: (c) braille system

---

Refraction And Dispersion Of Light Class 8 MCQ Question 9.
The image formed by a camera and a simple microscope are respectively
(a) real and real
(b) real and virtual
(c) virtual and virtual
(d) virtual and real

Answer

Answer: (b) real and virtual

---

Light Chapter Class 8 MCQ Question 10.
What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
(a) 60°
(b) 45°
(c) 90°
(d) 180°

Answer

Answer: (b) 45°

---

MCQ On Light Class 8 Pdf Question 11.
The splitting of white light into its seven constituent colours is called
(a) refraction
(b) dispersion
(c) deviation
(d) reflection

Answer

Answer: (b) dispersion

---

MCQs On Light Class 8 Question 12.
The defect due to which a person is not able to see the distant objects clearly:
(a) Myopia
(b) Hypermetropia
(c) Cornea
(d) Cataract

Answer

Answer: (a) Myopia

---

Class 8 Science Chapter Light MCQ Question 13.
The amount of light entering the eye is controlled by
(a) eye lens
(b) cornea
(c) iris
(d) ciliary muscle

Answer

Answer: (c) iris

---

MCQs Of Light Class 8 Question 14.
Myopia can be corrected by using a
(a) concave lens
(b) convex lens
(c) opaque lens
(d) micro lens

Answer

Answer: (a) concave lens

---

Ch 16 Science Class 8 MCQ Question 15.
Light enters the eye through
(a) eye lens
(b) pupil
(c) cornea
(d) retina

Answer

Answer: (c) cornea

---

Reflection Of Light Class 8 MCQ Question 16.
If the angle of incidence of light falling on a plane mirror is 30°, what will be the angle of reflection?
(a) 90°
(b) 60°
(c) 30°
(d) 0°

Answer

Answer: (c) 30 degree

---

Question 17.
When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called
(a) Left-right confusion
(b) Lateral inversion
(c) Up -side down phenomenon
(d) mirage

Answer

Answer: (b) Lateral inversion

---

Question 18.
Light passing through a prism splits into seven colours. This is called
(a) Dispersion
(b) Dissolution
(c) Division
(d) None of the above

Answer

Answer: (a) Dispersion

---

Question 19.
Rainbow is a natural phenomenon showing
(a) Reflection
(b) Deflection
(c) Dispersion
(d) Diversion

Answer

Answer: (a) Reflection

---

Question 20.
In the retina of the eye, the area having no sensory cells is called
(a) iris
(b) Blind spot
(c) cornea
(d) Dark spot

Answer

Answer: (b) Blind spot

---

Question 21.
If light falls perpendicularly on a plane mirror, what will be the angle in which it will be reflected?
(a) 45°
(b) 90°
(c) 180°
(d) 360°

Answer

Answer: (c) 180 degrees

---

Question 22.
Which of the following is not a luminous object?
(a) sun
(b) candle
(c) moon
(d) Tube light

Answer

Answer: (c) moon

---

Question 23.
To make a kaleidoscope we require
(a) Three plane mirrors
(b) Four plane mirrors
(c) Three glass sheets
(d) Four glass sheets

Answer

Answer: (a) Three plane mirrors

---

Question 24.
In our eye _______ cells can sense colour
(a) Rod
(b) Cone
(c) Both rod and cone
(d) Neither rod nor cone

Answer

Answer: (b) Cone

---

Question 25.
An owl can see clearly at night but not day time because it has
(a) More rods and few cones
(b) Less rod and more cones
(c) More rods and more cone
(d) Less rods and less cones

Answer

Answer: (a) More rods and few cones

---

Match the following items given in Column A with that in Column ‘B’:

Column A	Column B
(i) Cornea	(a) Transparent front part of eye
(ii) Pupil	(b) Layer on which impression of images is formed
(iii) Iris	(c) Point on retina where there are no nerve endings
(iv) Retina	(d) Sensitive for bright light
(v) Blind spot	(e) Is a small opening in the cornea
(vi) Rods	(f) Sensitive for dim light
(vii) Cones	(g) Controls the size of the pupil

Answer

Answer:

Column A	Column B
(i) Cornea	(a) Transparent front part of eye
(ii) Pupil	(e) Is a small opening in the cornea
(iii) Iris	(g) Controls the size of the pupil
(iv) Retina	(b) Layer on which impression of images is formed
(v) Blind spot	(c) Point on retina where there are no nerve endings
(vi) Rods	(f) Sensitive for dim light
(vii) Cones	(d) Sensitive for bright light

---

Fill in the blanks with the appropriate words:

1. Impression of an image persists for …………. of the second on retina.

Answer

Answer: 1/6 th

---

2. Angle of reflection is always …………. to the angle of incidence.

Answer

Answer: equal

---

3. …………. is a small opening in the corner.

Answer

Answer: Pupil

---

4. Cones are sensitive to …………. light.

Answer

Answer: bright

---

5. Muscles attached to the eye lens …………. and the lens becomes …………. when distant objects are to be seen.

Answer

Answer: relax, thinner

---

6. To keep our eyes fit our diet should include vitamin …………. rich eatables.

Answer

Answer: A

---

7. Impression of an image in eye is formed on ………….

Answer

Answer: retina

---

8. Braille system has …………. dot patterns.

Answer

Answer: 63

---

State whether the statements given below are True or False:

1. Both incident ray and reflected ray lie in the same plane.

Answer

Answer: True

---

2. Diffused reflection is due to the failure of the laws of reflection.

Answer

Answer: False

---

3. The image formed by plane mirror is laterally inverted.

Answer

Answer: True

---

4. The iris is the coloured part of the eye.

Answer

Answer: True

---

5. Rods are sensitive to bright light.

Answer

Answer: False

---

6. Changing of the thickness of the eye lens is called accommodation.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 16 Light with Answers Pdf free download will help you. If you have any queries regarding Light CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Some Natural Phenomena Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 15 Some Natural Phenomena to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 15 MCQ With Answers

Science Class 8 Chapter 15 MCQs On Some Natural Phenomena

Choose the correct option in the following questions:

Some Natural Phenomena Class 8 MCQ Question 1.
The process of transfer of charges from a charged object to the earth is called
(a) earthing
(b) lightning
(c) oscillation motion
(d) electron movement

Answer

Answer: (a) earthing

---

Class 8 Science Chapter 15 MCQ Question 2.
The power of an earthquake is expressed on a scale called
(a) seismic scale
(b) iron scale
(c) richter scale
(d) large scale

Answer

Answer: (c) richter scale

---

Natural Phenomena Class 8 MCQ Question 3.
Which instrument is used to measure earthquake?
(a) Richter scale
(b) Seismograph
(c) Polygraph
(d) None of these

Answer

Answer: (b) Seismograph

---

Class 8 Some Natural Phenomena MCQ Question 4.
Which is not a natural phenomena?
(a) Earthquakes
(b) Cyclones
(c) Lightning
(d) Earthing

Answer

Answer: (d) Earthing

---

MCQ On Some Natural Phenomena Class 8 Question 5.
How many types of charges are gained by rubbing objects?
(a) 2
(b) 1
(c) 3
(d) 4

Answer

Answer: (a) 2

---

Class 8 Science Ch 15 MCQ Question 6.
Where is the lightning rod attached to protect the building from lightning?
(a) On the top of the building
(b) On the bottom of the building
(c) In the middle of the building
(d) All of these

Answer

Answer: (a) On the top of the building

---

MCQ Questions For Class 8 Science Chapter 15 Question 7.
Lightning always follows
(a) a thunder
(b) rain pour
(c) the easiest path
(d) a straight path

Answer

Answer: (a) a thunder

---

Some Natural Phenomena Class 8 MCQ With Answers Question 8.
Tsunami means
(a) earthquake
(b) floods
(c) earthquake under the sea
(d) eruption of volcano in a sea

Answer

Answer: (c) earthquake under the sea

---

MCQ On Earthquake Class 8 Question 9.
The waves produced on the earth’s surface is called
(a) seismic wave
(b) longitudinal wave
(c) Micro wave
(d) Radio wave

Answer

Answer: (a) seismic wave

---

MCQ Questions On Some Natural Phenomena Class 8 Question 10.
Amber is a
(a) metal
(b) rubber
(c) resin
(d) sugar

Answer

Answer: (c) resin

---

MCQ Some Natural Phenomena Class 8 Question 11.
Which is the surest test of charge on a body?
(a) Repulsion
(b) Lightning
(c) Combustion
(d) Insulation

Answer

Answer: (a) Repulsion

---

Ch 15 Science Class 8 MCQ Question 12.
Which of the following can be charged with static electricity ?
(a) Metal
(b) Alloy
(c) Insulator
(d) Semiconductor

Answer

Answer: (c) Insulator

---

Class 8 Science Some Natural Phenomena MCQ Question 13.
Which of the following occurs during lightning?
(a) Acid rain
(b) Nitrogen fixation
(c) Green house effect
(d) Earthing

Answer

Answer: (b) Nitrogen fixation

---

Question 14.
Which of the following can be charged by rubbing?
(a) Ebonite
(b) Plastic
(c) Amber
(d) All of these

Answer

Answer: (d) All of these

---

Question 15.
When two bodies are rubbed against each other, they acquire
(a) equal and like charges
(b) equal and unlike charges
(c) unequal and like charges
(d) unequal and unlike charges

Answer

Answer: (b) equal and unlike charges

---

Question 16.
It is a convention to call the charge acquired by a glass rod when it is rubbed with silk as __________
(a) Negative
(b) Positive
(c) Neutral
(d) Can be any one

Answer

Answer: (b) Positive

---

Question 17.
A device used to test whether an object is carrying charge or not is called ______.
(a) Electrometer
(b) Charge meter
(c) Electroscope
(d) Chargoscope

Answer

Answer: (c) Electroscope

---

Question 18.
During lightning actually _____________ takes place
(a) Electric discharge
(b) Electric charging
(c) Electric charge accumulation
(d) All of the above

Answer

Answer: (a) Electric discharge

---

Question 19.
During a thunderstorm which action may be done?
(a) Using Telephone having cord
(b) Switching on / off electric lights
(c) Using a mobile phone
(d) None of the above

Answer

Answer: (c) Using a mobile phone

---

Question 20.
To protect tall buildings from the damage of lightning, what can be done?
(a) Not to build tall buildings
(b) Install lightning conductors
(c) Install many TV antennas
(d) Have a roof top garden with tall trees

Answer

Answer: (b) Install lightning conductors

---

Question 21.
A major earthquake occurred on 26th January 2001 in which part of India?
(a) Uri (Kashmir)
(b) Mumbai (Maharastra)
(c) Guwahati (Assam)
(d) Bhuj (Gujarat)

Answer

Answer: (d) Bhuj (Gujarat)

---

Question 22.
During thunderstorm it is safer to
(a) Carry an open umbrella
(b) Take shelter under short trees
(c) Take shelter under tall trees
(d) Stand in open fields

Answer

Answer: (b) Take shelter under short trees

---

Question 23.
The process of transferring charge from a charged body to earth is called
(a) transferring
(b) Processing
(c) Charging
(d) Earthing

Answer

Answer: (d) Earthing

---

Question 24.
Seismograph is an instrument used to
(a) Record strength of wind
(b)  Record vibrations of earthquake
(c)  Record lightening
(d) Record temperature

Answer

Answer: (b)  Record vibrations of earthquake

---

Question 25.
The power of an earthquake is expressed in terms of magnitude on a scale called
(a) Righter Scale
(b) Quake scale
(c) Richter Scale
(d) Earth Scale

Answer

Answer: (c) Richter Scale

---

Match the following items given in Column ‘A’ with that in Column ‘B’:

Column A	Column B
(i) Richter scale	(a) Sudden shaking of the earth
(ii) Waves recorder	(b) Conductor
(iii) Earthquake	(c) Earthing
(iv) Copper	(d) Earthquake under sea
(v) Transfer of charge to the earth	(e) Lightning
(vi) Tsunami	(f) Seismograph
(vii) Nitrogen fixation	(g) Power of earthquake
(viii) Insulator	(h) Plastic

Answer

Answer:

Column A	Column B
(i) Richter scale	(g) Power of earthquake
(ii) Waves recorder	(f) Seismograph
(iii) Earthquake	(a) Sudden shaking of the earth
(iv) Copper	(b) Conductor
(v) Transfer of charge to the earth	(c) Earthing
(vi) Tsunami	(d) Earthquake under sea
(vii) Nitrogen fixation	(e) Lightning
(viii) Insulator	(h) Plastic

---

Fill in the blanks with the appropriate words:

1. The electrical charge generated by rubbing two objects is ………….

Answer

Answer: static electricity

---

2. …………. is the sudden shaking of the Earth.

Answer

Answer: Earthquake

---

3. Seismograph is the instrument that records ………….

Answer

Answer: seismic waves

---

4. Richter scale is used to express the …………. of an earthquake.

Answer

Answer: magnitude

---

5. Earthquakes are caused due to the movement of ………….

Answer

Answer: Earth’s plates

---

6. Lightning always follows ………….

Answer

Answer: thunder

---

7. …………. types of charges are gained by rubbing objects.

Answer

Answer: Two

---

8. Nitrogen fixation occurs during ………….

Answer

Answer: lightning

---

State whether the statements given below are True or False:

1. An earthquake is a sudden shaking of the earth.

Answer

Answer: True

---

2. The process of transfer of charges from a charged object to the earth is called lightning.

Answer

Answer: False

---

3. The tremors produce waves on the surface of the earth.

Answer

Answer: True

---

4. The waves are recorded by Richter scale.

Answer

Answer: False

---

5. Lightning rod is a device used to secure tall buildings from the effect of lightning.

Answer

Answer: True

---

6. During earthquake take shelter under a table.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 15 Some Natural Phenomena with Answers Pdf free download will help you. If you have any queries regarding Some Natural Phenomena CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 13 Sound with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Sound Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 13 Sound to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 13 MCQ With Answers

Science Class 8 Chapter 13 MCQs On Sound

Choose the correct option.

Sound Class 8 MCQ Question 1.
The voice box is also called as
(a) stomach
(b) heart
(c) larynx
(d) mouth

Answer

Answer: (c) larynx

---

Sound MCQ Class 8 Question 2.
Sound is a kind of
(a) work
(b) energy
(c) force
(d) pressure

Answer

Answer: (b) energy

---

Class 8 Science Chapter 13 MCQ Question 3.
The hearing range of human ear is
(a) 20 Hz to 20,000 Hz
(b) less than 20 Hz
(c) more than 20,000 Hz
(d) 20 Hz to 25,000 Hz

Answer

Answer: (a) 20 Hz to 20,000 Hz

---

Class 8 Sound MCQ Question 4.
Pitch of sound is determined by its
(a) frequency
(b) speed
(c) amplitude
(d) loudness

Answer

Answer: (a) frequency

---

MCQ On Sound Class 8 Question 5.
The frequency of subsonic sound is
(a) more than 20 Hz
(b) 100 Hz
(c) less than 20 Hz
(d) more than 20,000 Hz

Answer

Answer: (c) less than 20 Hz

---

MCQ Of Sound Class 8 Question 6.
Cochlea is a part of
(a) hearing organ
(b) sound producing organ
(c) muscular organ
(d) air pollution

Answer

Answer: (a) hearing organ

---

Class 8 Science Sound MCQ Question 7.
1 hertz is equal to
(a) 1 vibration per minute
(b) 10 vibrations per minute
(c) 60 vibrations per minute
(d) 600 vibrations per minute

Answer

Answer: (c) 60 vibrations per minute

---

MCQ Questions For Class 8 Science Chapter 13 Question 8.
Sound cannot travel through
(a) air
(b) water
(c) air
(d) vacuum

Answer

Answer: (d) vacuum

---

Sound Chapter Class 8 MCQ Question 9.
The sound in the audible range is called
(a) ultrasonic sound
(b) sonic sound
(c) subonic sound
(d) light sound

Answer

Answer: (b) sonic sound

---

Class 8 Science Ch 13 MCQ Question 10.
Speed is
(a) \(\frac{Distance travelled}{Time}\)
(b) \(\frac{Time}{Distance travelled}\)
(c) Distance travelled × Time
(d) Time + Distance travelled

Answer

Answer: (a) \(\frac{Distance travelled}{Time}\)

---

Ch 13 Science Class 8 MCQ Question 11.
A pendulum oscillates 20 times in 4 seconds. Find its time period.
(a) 0.05 sec.
(b) 0.001 sec.
(c) 0.2 sec.
(d) 0.1 sec

Answer

Answer: (c) 0.2 sec.

---

MCQ Sound Class 8 Question 12.
Loudness of sound is determined by
(a) pitch
(b) frequency
(c) amplitude
(d) time period

Answer

Answer: (c) amplitude

---

Class 8 Science Chapter Sound MCQ Question 13.
The number of vibrations made by a vibrating body in one second is
(a) frequency
(b) noise
(c) loudness
(d) pitch

Answer

Answer: (a) frequency

---

MCQs On Sound Class 8 Question 14.
The maximum displacement of a body from its mean position is called
(a) amplitude
(b) oscillation
(c) periodic motion
(d) frequency

Answer

Answer: (a) amplitude

---

MCQ Questions On Sound Class 8 Question 15.
The velocity of sound at 20°C is approximately
(a) 3400 m/sec.
(b) 340 m/sec.
(c) 430 m/sec
(d) 304 m/sec.

Answer

Answer: (b) 340 m/sec.

---

Question 16.
Sound is produced by
(a) Non-Vibrating objects only
(b) Vibrating and non- vibrating objects
(c) Vibration has no relation to sound
(d) Vibrating objects only

Answer

Answer: (d) Vibrating objects only

---

Question 17.
Sound cannot travel through
(a) vacuum
(b) air
(c) water
(d) solids

Answer

Answer: (a) vacuum

---

Question 18.
Vibration is also known as
(a) Vibratory motion
(b) Translatory motion
(c) Oscillatory motion
(d)  None of these

Answer

Answer: (c) Oscillatory motion

---

Question 19.
Frequency is expressed in
(a) Kilometer
(b) Hertz
(c) gram
(d) Degree centigrade

Answer

Answer: (b) Hertz

---

Question 20.
The number of oscillations per second is called
(a) Amplitude of oscillation
(b) Pitch of oscillation
(c) Frequency of oscillation
(d) None of the above

Answer

Answer: (c) Frequency of oscillation

---

Question 21.
Above _____ dB the sound becomes physically painful
(a) 60
(b) 40
(c) 120
(d) 80

Answer

Answer: (d) 80

---

Question 22.
When the amplitude of vibration is large, sound produced is
(a)  No sound
(b) feeble
(c) loud
(d) No relation between amplitude and sound

Answer

Answer: (c) loud

---

Question 23.
Human can hear sound in the range of
(a) 200-2000 Hz
(b) 20-20,000 Hz
(c)  2-20000 Hz
(d) 2000-200000 Hz

Answer

Answer: (b) 20-20,000 Hz

---

Question 24.
An ultrasound equipment works at frequency
(a) Higher than 20,000 Hz
(b) Higher than 10,000 Hz
(c) Lower than 20,000 Hz
(d) Lower than 10,000 Hz

Answer

Answer: (a) Higher than 20,000 Hz

---

Question 25.
Voice of man is heavy compared to a woman because
(a) Female vocal cord is longer
(b) Male vocal cord is shorter
(c) Male vocal cord is longer
(d) The concept is not related

Answer

Answer: (c) Male vocal cord is longer

---

Match the items given in column I suitably with those given in column II.

Column I	Column II
1. Audible frequencies	(a) 10 dB
2. Length of vocal cords in man	(b) 30 dB
3. Ultrasound	(c) 20 mm long
4. Normal breathing	(d) 20 to 20,000 Hz
5. Soft whisper  (At 5 m)	(e) Hertz
6. Frequency	(f) Percussion instrument
7. Unpleasant sound	(g) Music
8. Pitch	(h) Produced by bats
9. Tabla	(i) Noise
10. Pleasant sound	(j) Higher frequency

Answer

Answer:

Column I	Column II
1. Audible frequencies	(d) 20 to 20,000 Hz
2. Length of vocal cords in man	(c) 20 mm long
3. Ultrasound	(h) Produced by bats
4. Normal breathing	(a) 10 dB
5. Soft whisper  (At 5 m)	(b) 30 dB
6. Frequency	(e) Hertz
7. Unpleasant sound	(i) Noise
8. Pitch	(j) Higher frequency
9. Tabla	(f) Percussion instrument
10. Pleasant sound	(g) Music

---

Fill in the blanks with suitable word/s.

1. human beings sound is produced by __________.

Answer

Answer: larynx

---

2. Sound of frequency lower than 20 Hz is called the __________.

Answer

Answer: infrasonic

---

3. The __________ nerve is also present in the inner ear.

Answer

Answer: auditory

---

4. Sounds which are unpleasant to the ear is called __________.

Answer

Answer: noise

---

5. Too much noise in our surroundings that causes discomfort is called __________.

Answer

Answer: noise pollution

---

6. The speed of sound is maximum in __________.

Answer

Answer: solids

---

7. Sounds of frequencies higher than 20,000 Hz are called the __________ sound.

Answer

Answer: ultrasonic

---

8. __________ is the time taken by a vibrating body for one complete vibration.

Answer

Answer: Time period

---

9. Above __________ the noise becomes physically painful.

Answer

Answer: 80 dB

---

10. Plantation on the roadside can reduce __________.

Answer

Answer: noise pollution

---

11. The hearing range of human ears is __________.

Answer

Answer: 20 Hz to 20,000 Hz

---

12. The loudness of normal breathing of human is __________.

Answer

Answer: 10 dB

---

13. Vibration is a repeated __________ and __________ motion.

Answer

Answer: to, fro

---

14. The loudness of sound is determined by the __________ of vibration.

Answer

Answer: amplitude

---

15. The human voice box is called __________.

Answer

Answer: larynx

---

State whether the given statements are true or false.

1. All human beings can hear sounds of frequencies upto 60,000 Hz.

Answer

Answer: False

---

2. The sound in a sitar is produced by plucking its strings.

Answer

Answer: True

---

3. Sound cannot travel through vacuum.

Answer

Answer: True

---

4. Sound does not need a medium for its propagation.

Answer

Answer: False

---

5. The loudness is expressed in a unit called decibel.

Answer

Answer: True

---

6. Loud sounds have high frequencies.

Answer

Answer: False

---

7. Sound travel faster in air, slower in iron.

Answer

Answer: False

---

8. Light travels much faster than sound.

Answer

Answer: True

---

9. Man cannot hear sound of bats.

Answer

Answer: True

---

10. The time taken to complete one oscillation is called frequency.

Answer

Answer: False

---

11. Shriller sound has more frequency.

Answer

Answer: True

---

12. Tabla is a musical instrument.

Answer

Answer: True

---

13. The sound could not travel in solid.

Answer

Answer: False

---

14. The pitch of a sound depends in the frequency of the waves.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 13 Sound with Answers Pdf free download will help you. If you have any queries regarding Sound CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 17 Stars and the Solar System with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Stars and the Solar System Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 17 Stars and the Solar System to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 17 MCQ With Answers

Science Class 8 Chapter 17 MCQs On Stars and the Solar System

Choose the correct option in the following questions:

Stars And Solar System Class 8 MCQ Question 1.
Which of the following does not belong to the family of solar system?
(a) Planet
(b) Galaxy
(c) Meteors
(d) Comet

Answer

Answer: (b) Galaxy

---

Class 8 Science Chapter 17 MCQ Question 2.
The Halley’s Comet is seen after every
(a) 76 months
(b) 76 years
(c) 56 months
(d) 56 years

Answer

Answer: (b) 76 years

---

Stars And The Solar System Class 8 MCQ Question 3.
Ursa Major is a
(a) star
(b) constellation
(c) seen only with telescope
(d) satellite

Answer

Answer: (b) constellation

---

Class 8 Science Ch 17 MCQ Question 4.
Which planet has the largest number of satellites?
(a) Jupiter
(b) Saturn
(c) Mercury
(d) Mars

Answer

Answer: (b) Saturn

---

Star And Solar System Class 8 MCQ Question 5.
Which unit is used to measure astronomical distances?
(a) Leap year
(b) Light year
(c) Century
(d) Sound year

Answer

Answer: (b) Light year

---

Class 8 Stars And Solar System MCQ Question 6.
The stars forming a recognizable shape is called
(a) constellation
(b) system
(c) galaxy
(d) asteroids

Answer

Answer: (a) constellation

---

MCQ Questions For Class 8 Science Chapter 17 Question 7.
Which star is nearest to Earth?
(a) Pole star
(c) Orion
(b) Cassiopeia
(d) Sun

Answer

Answer: (d) Sun

---

MCQ On Stars And Solar System Question 8.
What term is used for celestial bodies that revolve around the Sun in highly elliptical orbit?
(a) Comet
(b) Meteors
(c) Asteroids
(d) Planets

Answer

Answer: (a) Comet

---

MCQ On Stars And Solar System For Class 8 Question 9.
Which small objects revolve between the orbits of Mars and Jupiter?
(a) Satellites
(b) Comets
(c) Asteroids
(d) Meteorites

Answer

Answer: (c) Asteroids

---

Stars And Solar System MCQ Class 8 Question 10.
Which planet is called morning star or evening star?
(a) Venus
(b) Mars
(c) Jupiter
(d) Mercury

Answer

Answer: (a) Venus

---

Class 8 Science Stars And Solar System MCQ Question 11.
Our galaxy is known as
(a) Earth galaxy
(b) Sun galaxy
(c) Milky Way
(d) Constellation

Answer

Answer: (c) Milky Way

---

Ch 17 Science Class 8 MCQ Question 12.
Which of the following is not a planet?
(a) Mercury
(b) Saturn
(c) Jupiter
(d) Great bear

Answer

Answer: (d) Great bear

---

Ncert Class 8 Science Chapter 17 MCQ Question 13.
Orion is a
(a) constellation
(b) star
(c) planet
(d) satellite

Answer

Answer: (a) constellation

---

Stars And Solar System Class 8 MCQ Online Test Question 14.
Shooting stars are called
(a) asteroids
(b) galaxies
(c) meteors
(d) andromeda

Answer

Answer: (c) meteors

---

Class 8 Ch 17 Science MCQ Question 15.
The planet farthest from the Sun is
(a) Uranus
(b) Neptune
(c) Saturn
(d) Mercury

Answer

Answer: (b) Neptune

---

MCQ Questions On Stars And Solar System Question 16.
If I am 13 years old, I have gone round the sun ___ times.
(a) Never gone round the sun
(b) 13
(c) 26
(d) Shall go round the sun when I shall be 15

Answer

Answer: (b) 13

---

Question 17.
The least dense planet is
(a) Earth
(b) Jupiter
(c) Saturn
(d) Uranus

Answer

Answer: (c) Saturn

---

Question 18.
____ appears as a bright head with a long tail. The tail grows in size as it approaches the sun.
(a) Asteroid
(b) Comet
(c) Planet
(d) Meteor

Answer

Answer: (b) Comet

---

Question 19.
During a clear night sky, bright light streaks are often visible. They are called shooting stars. They are actually
(a) Falling stars
(b) Comet
(c) Meteors
(d) Planet

Answer

Answer: (c) Meteors

---

Question 20.
_____ was the first Indian satellite.
(a) INSAT
(b) EDUSAT
(c) IRS
(d) Aryabhatta

Answer

Answer: (d) Aryabhatta

---

Question 21.
If Saturn is thrown into an ocean,
(a) It will float
(b) It will sink
(c) It will dissolve
(d) It will soak all water

Answer

Answer: (a) It will float

---

Question 22.
It is difficult to observe Mars because
(a) It is the smallest planet of this universe
(b) It is too far away from our planet
(c) It is hidden by the glare of the sun
(d) None of the above

Answer

Answer: (c) It is hidden by the glare of the sun

---

Question 23.
Ravi was looking for Venus in the sky at midnight. Mohan laughed at him because Venus
(a) Appears 1-3 hours after sunrise or 1-3 hours after sunset
(b) Appears 1-3 hours before sunrise or 1-3 hours after sunset
(c) Appears 1-3 hours before sunrise or 1-3 hours before sunset
(d) Appears 1-3 hours after sunrise or 1-3 hours before sunset

Answer

Answer: (b) Appears 1-3 hours before sunrise or 1-3 hours after sunset

---

Question 24.
Earlier we had 9 planets in our solar system of which one name has been eliminated as per IAU (2006). The planet is
(a) Uranus
(b) Neptune
(c) Pluto
(d) Earth

Answer

Answer: (c) Pluto

---

Question 25.
Light Year is
(a) Year full of light
(b) Year having light work
(c) Year which earth shall become lighter
(d) Distance travelled by light in 1 year

Answer

Answer: (d) Distance travelled by light in 1 year

---

Match the following items given in Column A with that in Column ‘B’:

Column A	Column B
(i) Nearest of the Sun	(a) Jupiter
(ii) Largest planet	(b) Star
(iii) Comets	(c) Artificial satellites
(iv) Alpha Centauri	(d) A constellation
(v) INSAT 3E	(e) Other than planets
(vi) Ursa major	(f) Neptune
(vii) Planet	(g) Mercury

Answer

Answer:

Column A	Column B
(i) Nearest of the Sun	(g) Mercury
(ii) Largest planet	(a) Jupiter
(iii) Comets	(e) Other than planets
(iv) Alpha Centauri	(b) Star
(v) INSAT 3E	(c) Artificial satellites
(vi) Ursa major	(d) A constellation
(vii) Planet	(f) Neptune

---

Fill in the blanks with the appropriate words:

1. ………….. are celestial bodies of the universe and continuously emit heat and light.

Answer

Answer: Stars

---

2. ………….. is the distance travelled by light in one year and is equal to 9.46 × 10¹² kilometres.

Answer

Answer: Light year

---

3. ………….. is the star which appears to be stationary near the northern horizon.

Answer

Answer: Pole Star

---

4. ………….. is a group of stars arranged in a definite pattern.

Answer

Answer: Constellation

---

5. ………….. are bright objects that revolve around the Sun.

Answer

Answer: Planets

---

6. ………….. constitutes Sun, eight planets with their moons and all other objects that are bound to the Sun due to gravity, e.g., asteroids, comets and meteors.

Answer

Answer: Solar system

---

7. ………….. are minor planets that revolve around the Sun and are located between Mars and Jupiter.

Answer

Answer: Asteroids

---

8. ………….. are very small sized bodies that revolve around the Sun in highly elliptical orbits and are characterized with a small head and a long tail.

Answer

Answer: Comets

---

9. ………….. are small stony or metallic bodies (meteors) travelling in interplanetary space that actually reach the Earth’s surface.

Answer

Answer: Meteorites

---

10. ………….. are the celestial bodies revolving around a planet.

Answer

Answer: Satellites

---

State whether the statements given below are True or False:

1. Sun is a star

Answer

Answer: True

---

2. Orion has 10 bright stars

Answer

Answer: False

---

3. Mercury has no satellite of its own

Answer

Answer: True

---

4. Planets do twinkle

Answer

Answer: False

---

5. Jupiter is the largest planet.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 17 Stars and the Solar System with Answers Pdf free download will help you. If you have any queries regarding Stars and the Solar System CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 18 Pollution of Air and Water with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Pollution of Air and Water Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 18 Pollution of Air and Water to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 18 MCQ With Answers

Science Class 8 Chapter 18 MCQs On Pollution of Air and Water

Choose the correct option in the following questions:

Pollution Of Air And Water Class 8 MCQ Question 1.
Which gas is the major pollutant of air?
(a) Carbon monoxide
(b) Nitrogen
(c) Oxygen
(d) Propane

Answer

Answer: (a) Carbon monoxide

---

Class 8 Science Chapter 18 MCQ Question 2.
The increase in concentration of which gas is not responsible for Global Warming?
(a) Sulphur dioxide
(b) Nitrogen
(c) Carbon dioxide
(d) Methane

Answer

Answer: (b) Nitrogen

---

Class 8 Science Ch 18 MCQ Question 3.
In which year Ganga Action Plan was launched?
(a) 1980
(b) 1984
(c) 1982
(d) 1985

Answer

Answer: (d) 1985

---

MCQ On Pollution Of Air And Water Class 8 Question 4.
What radiations are absorbed by CO₂?
(a) Ultrared radiations
(b) Infrared radiations
(c) Ultraviolet radiations
(d) None of these

Answer

Answer: (b) Infrared radiations

---

Class 8 Pollution Of Air And Water MCQ Question 5.
Which element is present in the exhaust of automobiles?
(a) Lead
(b) Calcium
(c) Chromium
(d) Magnesium

Answer

Answer: (a) Lead

---

Pollution Of Air And Water MCQ Question 6.
The phenomenon of marble cancer is due to
(a) soil particles
(b) fog
(c) CFCs
(d) acid rain

Answer

Answer: (d) acid rain

---

MCQ Questions For Class 8 Science With Answers Pollution Of Air And Water Question 7.
The solid or liquid particles dispersed in the air are called
(a) oxides
(b) acids
(c) hydrocarbons
(d) aerosols

Answer

Answer: (d) aerosols

---

Class 8 Science Pollution Of Air And Water MCQ Question 8.
The type of pollution which is likely to affect Taj Mahal in Agra to a greater extent is
(a) air pollution
(b) soil pollution
(c) water pollution
(d) noise pollution

Answer

Answer: (a) air pollution

---

Pollution Of Air And Water Class 8 MCQs Question 9.
The major causes of air pollution include
(a) burning of coal and petroleum
(b) afforestation
(c) deforestation
(d) recycling of paper

Answer

Answer: (a) burning of coal and petroleum

---

Ch 18 Science Class 8 MCQ Question 10.
Bhopal tragedy was caused due to
(a) air pollution
(b) emission of poisonous gas
(c) water pollution
(d) leakage of poisonous gas

Answer

Answer: (d) leakage of poisonous gas

---

MCQ On Pollution Of Air And Water Pdf Question 11.
Which of the following contents is most harmful to aquatic animals?
(a) Heavy metal ions
(b) Sodium ions
(c) Potassium ions
(d) Chloride ions

Answer

Answer: (a) Heavy metal ions

---

MCQ Of Pollution Of Air And Water Class 8 Question 12.
Water containing high salt concentration can be purified by
(a) boiling
(b) UV irradiation
(c) filtration
(d) reverse osmosis

Answer

Answer: (d) reverse osmosis

---

Pollution Of Air Class 8 MCQ Question 13.
Which of the following is a non-biodegradable pollutant?
(a) Sulphur dioxide
(b) DDT
(c) Nitrogen oxide
(d) Hydrogen oxide

Answer

Answer: (b) DDT

---

Air And Water Pollution Class 8 MCQ Question 14.
Which of the following is major source of water pollution?
(a) Industrial wastes
(b) Untreated sewage
(c) Use of fertilisers
(d) Toxic metals

Answer

Answer: (b) Untreated sewage

---

MCQs On Pollution Of Air And Water Question 15.
Which of the following techniques of irrigation should be used to save water?
(a) Water wheel
(b) Canal irrigation
(c) Drip irrigation
(d) Lift irrigation

Answer

Answer: (c) Drip irrigation

---

Question 16.
Carbon monoxide in vehicle exhaust causes
(a) Increased oxygen carrying capacity of RBCs
(b) Reduced Nitrogen carrying capacity of RBCs
(c) Reduced oxygen carrying capacity of RBCs
(d) Reduced carbon carrying capacity of RBCs

Answer

Answer: (c) Reduced oxygen carrying capacity of RBCs

---

Question 17.
Smog =
(a) Smoke in dog’s stomach
(b) Smoke + fog
(c) Smoke dog
(d) frog in fog

Answer

Answer: (b) Smoke + fog

---

Question 18.
The gas used in refrigerating appliance causing serious damage to ozone is
(a) MFCs
(b) CFCs
(c) LPCs
(d) DPCs

Answer

Answer: (b) CFCs

---

Question 19.
Acid rain mainly contains
(a) Sodium chloride
(b) Sulphur dioxide and Nitrogen dioxide
(c) Hydrochloric acid
(d) Carbon tetra chloride

Answer

Answer: (b) Sulphur dioxide and Nitrogen dioxide

---

Question 20.
Marble cancer is caused by
(a) bacteria
(b) virus
(c) Acid rain
(d) Alkali rain

Answer

Answer: (c) Acid rain

---

Question 21.
Greenhouse effect is
(a) Painting house green in colour
(b) Wearing green colour dress
(c) Having green room in the house
(d) Sun’s heat is trapped and not allowed to escape

Answer

Answer: (d) Sun’s heat is trapped and not allowed to escape

---

Question 22.
Greenhouse gases includes
(a) CO₂, Methane, Nitrous oxide
(b) CO₂, Argon, Nitrous oxide
(c) CO₂, Methane, Chlorine
(d) CO₂, Methane, Flourine

Answer

Answer: (a) CO₂, Methane, Nitrous oxide

---

Question 23.
_____ is a commonly used chemical method for purifying water.
(a) Brominization
(b) Flourination
(c) Filtration
(d) Chlorination

Answer

Answer: (d) Chlorination

---

Question 24.
Ganga Action Plan is associated with
(a) Increase of fish culture in the Ganges
(b) Reduce Ganga water pollution
(c) Construct more bridges over the Ganges
(d) Increase water transport on the Ganges

Answer

Answer: (b) Reduce Ganga water pollution

---

Question 25.
Van Mahotsav is
(a) Planting trees in January
(b) Cutting trees in January
(c) Cutting trees in July
(d) Planting trees in July

Answer

Answer: (d) Planting trees in July

---

Match the following items given in Column ‘A’ with that in Column ‘B’:

Column A	Column B
(i) Greenhouse gas	(a) Absorbed by CO2
(ii) Infrared radiations	(b) Polluting gas
(iii) Oxides which affect vegetation	(c) Fog
(iv) Sulphur dioxide	(d) Caused by smog
(v) Condensed wider vapour in air	(e) Smoke + fog + fumes
(vi) Asthma	(f) Carbon dioxide
(vii) Smog	(g) Nitrogen oxides

Answer

Answer:

Column A	Column B
(i) Greenhouse gas	(f) Carbon dioxide
(ii) Infrared radiations	(a) Absorbed by CO2
(iii) Oxides which affect vegetation	(g) Nitrogen oxides
(iv) Sulphur dioxide	(b) Polluting gas
(v) Condensed wider vapour in air	(c) Fog
(vi) Asthma	(d) Caused by smog
(vii) Smog	(e) Smoke + fog + fumes

---

Fill in the blanks with the appropriate words:

1. Air contains the highest percentage of …………..

Answer

Answer: nitrogen

---

2. Most of the atmospheric air is contained in the atmospheric layer called …………..

Answer

Answer: troposphere

---

3. Stratosphere layer of the atmosphere protects us from …………..

Answer

Answer: ultraviolet radiations

---

4. An odd combination of smoke and fog is called ……………

Answer

Answer: smog

---

5. The solid or liquid particles dispersed in air are called ……………

Answer

Answer: aerosols

---

State whether the statements given below are True or False:

1. Carbon monoxide is a poisonous gas.

Answer

Answer: True

---

2. CFCs are not used in air conditioners.

Answer

Answer: False

---

3. Infrared radiations are absorbed by oxygen.

Answer

Answer: False

---

4. Ultra violets radiations are absorbed by ozone.

Answer

Answer: True

---

5. SO₂, CO₂and Nitrogen oxides are polluting gases.

Answer

Answer: True

---

We hope the given NCERT MCQ Questions for Class 8 Science Chapter 18 Pollution of Air and Water with Answers Pdf free download will help you. If you have any queries regarding Pollution of Air and Water CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 8 Science MCQ:

• Crop Production and Management Class 8 MCQ
• Microorganisms: Friend and Foe Class 8 MCQ
• Synthetic Fibres and Plastics Class 8 MCQ
• Materials: Metals and Non-Metals Class 8 MCQ
• Coal and Petroleum Class 8 MCQ
• Combustion and Flame Class 8 MCQ
• Conservation of Plants and Animals Class 8 MCQ
• Cell Structure and Functions Class 8 MCQ
• Reproduction in Animals Class 8 MCQ
• Reaching the Age of Adolescence Class 8 MCQ
• Force and Pressure Class 8 MCQ
• Friction Class 8 MCQ
• Sound Class 8 MCQ
• Chemical Effects of Electric Current Class 8 MCQ
• Some Natural Phenomena Class 8 MCQ
• Light Class 8 MCQ
• Stars and the Solar System Class 8 MCQ
• Pollution of Air and Water Class 8 MCQ

Check the below Online Education NCERT MCQ Questions for Class 8 Science Chapter 12 Friction with Answers Pdf free download. MCQ Questions for Class 8 Science with Answers were prepared based on the latest exam pattern. We have provided Friction Class 8 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-8-science-with-answers/

You can refer to NCERT Solutions for Class 8 Science Chapter 12 Friction to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 8 Science Chapter 12 MCQ With Answers

Science Class 8 Chapter 12 MCQs On Friction

Choose the correct option.

Friction Class 8 MCQ Question 1.
Friction is a
(a) non-contact force
(b) contact force
(c) magnetic force
(d) electrostatic force

Answer

Answer: (b) contact force

---

Class 8 Science Chapter 12 MCQ Question 2.
Which of the following produces least friction?
(a) Sliding friction
(b) Rolling friction
(c) Composite friction
(d) Static friction

Answer

Answer: (b) Rolling friction

---

Friction MCQ Class 8 Question 3.
Friction always
(a) opposes the motion
(b) helps the motion
(c) both (a) and (b)
(d) none of these

Answer

Answer: (a) opposes the motion

---

Class 8 Friction MCQ Question 4.
Friction can be reduced by using
(a) oil
(b) grease
(c) powder
(d) all of these

Answer

Answer: (d) all of these

---

MCQ On Friction Class 8 Question 5.
Static friction is less than
(a) sliding friction
(b) rolling friction
(c) both (a) and (b)
(d) none of these

Answer

Answer: (d) none of these

---

MCQ Of Friction Class 8 Question 6.
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
(a) only if the objects are solid.
(b) only if one of the two objects is liquid.
(c) only if one of the two objects is gaseous.
(d) irrespective of whether the objects are solid, liquid or gaseous.

Answer

Answer: (d) irrespective of whether the objects are solid, liquid or gaseous.

---

MCQ Questions For Class 8 Science Chapter 12 Question 7.
To sharpen the blade of a knife by rubbing it against a surface, which of the following will be most suitable?
(a) Stone
(b) Plastic block
(c) Wooden block
(d) Glass block

Answer

Answer: (a) Stone

---

Class 8 Science Ch 12 MCQ Question 8.
The shape of an aeroplane is like a
(a) dog
(b) bird
(c) car
(d) all of these

Answer

Answer: (b) bird

---

Class 8 Science Friction MCQ Question 9.
Friction is
(a) foe
(b) friend
(c) both (a) and (b)
(d) none of these

Answer

Answer: (c) both (a) and (b)

---

Force And Friction Class 8 MCQ Question 10.
Friction due to fluids is called
(a) force
(b) pressure
(c) friction
(d) drag

Answer

Answer: (d) drag

---

MCQ Friction Class 8 Question 11.
Which of the following is not a smooth surface?
(a) Surface of wet soap
(b) Surface of tyres
(c) Glazed tiles
(d) Surface of mirror

Answer

Answer: (b) Surface of tyres

---

Ch 12 Science Class 8 MCQ Question 12.
A toy car released with the same initial speed will travel farthest on
(a) muddy surface
(b) polished marble surface
(c) cemented surface
(d) brick surface

Answer

Answer: (b) polished marble surface

---

Class 8 Science Chapter Friction MCQ Question 13.
If we apply oil on door hinges, the friction will
(a) increase
(b) decrease
(c) disappear altogether
(d) will remain unchanged

Answer

Answer: (b) decrease

---

Class 8 Chapter 12 Science MCQ Question 14.
Lubricant
(a) reduce friction
(b) increase friction
(c) both (a) and (b)
(d) none of these

Answer

Answer: (a) reduce friction

---

MCQs On Friction Class 8 Question 15.
Force of friction depends on
(a) roughness of surface
(b) smoothness of surface
(c) inclination of surface
(d) all of these

Answer

Answer: (d) all of these

---

Class 8 Ch 12 Science MCQ Question 16.
Force of friction depends on
(a) roughness of surface
(b) weight
(c) size
(d) all of these

Answer

Answer: (d) all of these

---

Chapter 12 Science Class 8 MCQ Question 17.
Fluids are
(a) liquids
(b) gases
(c) both (a) and (b)
(d) none of these

Answer

Answer: (c) both (a) and (b)

---

Question 18.
Which is a streamlined object?
(a) Boats
(b) Aeroplanes
(c) Ships
(d) All of these

Answer

Answer: (d) All of these

---

Question 19.
Smooth surface has
(a) less friction
(b) more friction
(c) sometimes less and sometimes more
(d) all of these

Answer

Answer: (a) less friction

---

Question 20.
Which of the following is responsible for wearing out of bicycle tyres?
(a) Muscular force
(b) Magnetic force
(c) Frictional force
(d) Electrostatic force

Answer

Answer: (c) Frictional force

---

Question 21.
It is difficult to walk on an oily floor because
(a) Floor gets spoiled
(b) There is more resistance
(c) Force of friction is high
(d) Force of friction is very less

Answer

Answer: (d) Force of friction is very less

---

Question 22.
Spring balance is a device used for measuring the _____________ acting on an object.
(a) mass
(b) pressure
(c) force
(d) None of the above

Answer

Answer: (c) force

---

Question 23.
A matchstick struck on a matchbox catches fire easily because
(a) Friction may cause fire
(b) Of chemical reaction
(c) Force heated the match stick
(d) None of the above

Answer

Answer: (a) Friction may cause fire

---

Question 24.
Tyres are treaded to
(a) look good
(b) Increase friction
(c) increase its longivity
(d) increase weight of the tyre

Answer

Answer: (b) Increase friction

---

Question 25.
Lubricants are substances which
(a) Increase friction
(b) Are used to light fire
(c) Reduce friction
(d) Are used to put out a fire

Answer

Answer: (c) Reduce friction

---

Question 26.
Sliding friction is _________ than / to rolling friction
(a) smaller
(b) greater
(c) equal
(d) None of the above

Answer

Answer: (b) greater

---

Question 27.
The frictional force exerted by fluids is also called ______
(a) drug
(b) drag
(c) drop
(d) drown

Answer

Answer: (b) drag

---

Question 28.
Four children were asked to arrange forces due to rolling, static and sliding frictions in an increasing order. Their arrangements are given below. Choose the correct arrangement.
(a) Rolling, Static, Sliding
(b) Static, Rolling, Sliding
(c) Rolling, sliding, static
(d) Sliding, Static, Rolling

Answer

Answer: (c) Rolling, sliding, static

---

Question 29.
A boat or an aeroplane has a pointed or tapering front / head. Why?
(a) To increase the friction of fluid
(b) To reduce the friction of fluid
(c) To look good
(d) For no reason

Answer

Answer: (b) To reduce the friction of fluid

---

Question 30.
The sole of the shoes becomes plain after wearing it for several months. The reason is
(a) Wearing out due to friction
(b) Wearing out due to no friction
(c) Sole is of bad quality
(d) None of the above

Answer

Answer: (a) Wearing out due to friction

---

Match the items given in column I suitably with those given in column II.

Column I	Column II
1. Fluid friction	(a) Due to friction
2. Lubricants	(b) Streamlined
3. Wheels	(c) Increases friction
4. Spring balance	(d) Drag
5. Shape of aeroplane	(e) Rolling friction
6. Rough surface	(f) Reduce friction
7. Heat generation	(g) Measures force

Answer

Answer:

Column I	Column II
1. Fluid friction	(d) Drag
2. Lubricants	(f) Reduce friction
3. Wheels	(e) Rolling friction
4. Spring balance	(g) Measures force
5. Shape of aeroplane	(b) Streamlined
6. Rough surface	(c) Increases friction
7. Heat generation	(a) Due to friction

---

Fill in the blanks with suitable word/s.

1. Sliding friction is ___________ than static friction.

Answer

Answer: less

---

2. Friction can be reduced by using ___________.

Answer

Answer: oil or powder or grease

---

3. Friction can be increased by making surface ___________.

Answer

Answer: rough

---

4. Rolling friction is ___________ than sliding and static friction.

Answer

Answer: less

---

5. Friction due to fluid is also called ___________.

Answer

Answer: drag

---

6. Bodies of birds, fishes and ships are ___________.

Answer

Answer: streamlined

---

7. Friction can also produce ___________.

Answer

Answer: heat

---

8. All objects moving in fluids have ___________ shape to reduce ___________.

Answer

Answer: streamlined, friction

---

9. Rough surfaces produce ___________ friction than smooth surfaces.

Answer

Answer: more

---

10. In many machines, friction is reduced by using ___________.

Answer

Answer: ball bearing

---

11. Friction depends on the ___________ of substances in contact.

Answer

Answer: nature

---

12. Static friction comes into play when we try to move an object at ___________.

Answer

Answer: rest

---

13. ___________ force is responsible for downward movement of a parachutist when he jumps from an aircraft

Answer

Answer: Gravitational

---

14. The sole of shoes and the tyres of vehicles are treaded to _________ friction.

Answer

Answer: increase

---

15. Friction is sometimes _________ .

Answer

Answer: undesirable

---

State whether the given statements are true or false.

1. Friction is always useful to us.

Answer

Answer: False

---

2. Fluids are only liquids.

Answer

Answer: False

---

3. Friction is less for smooth surfaces.

Answer

Answer: True

---

4. A soapy floor is slippery due to increased friction.

Answer

Answer: False

---

5. Friction always works in opposite direction to the relative motion.

Answer

Answer: True

---

6. Friction is dependent on area of contact.

Answer

Answer: False

---

7. Sliding friction is less than rolling friction.

Answer

Answer: False

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8. Friction decreases with increase in the smoothness of the surface.

Answer

Answer: True

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9. It is easier to move a heavy object than a light object.

Answer

Answer: False

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10. Friction can be reduced by using lubricants.

Answer

Answer: True

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11. Friction is independent of the nature of surfaces in contact.

Answer

Answer: False

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12. A spring balance measures force.

Answer

Answer: True

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13. Friction can be reduced by using ball bearings in some machines.

Answer

Answer: True

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14. Friction can never be eliminated.

Answer

Answer: True

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15. Friction do not produce heat.

Answer

Answer: False

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We hope the given NCERT MCQ Questions for Class 8 Science Chapter 12 Friction with Answers Pdf free download will help you. If you have any queries regarding Friction CBSE Class 8 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

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