MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers

Thermal Properties of Matter Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 11 Thermal Properties of Matter with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Thermal Properties of Matter Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 11 MCQ With Answers

Physics Class 9 Chapter 11 MCQs On Thermal Properties of Matter

Thermal Properties Of Matter MCQ Pdf Question 1.
Absorptive power of perfectly black body is
(a) Zero
(b) Infinity
(c) One
(d) Constant

Answer

Answer: (c) One

Thermal Properties Of Matter Class 11 MCQ Question 2.
A black body at hot temperature at 227°C radiates heat at a rate of 5 cal/cm²s. at a temperature of 727°C the rate of heat radiated per unit area will be
(a) 50 cal/cm²s
(b) 250 cal/cm²s
(c) 80 cal/cm²s
(d) 100 cal/cm²s

Answer

Answer: (c) 80 cal/cm²s

Thermal Properties Of Matter MCQ Question 3.
A body cools from 50°C to 46°C in 5 minutes and to 40°C in the next 10 minutes. The surrounding temperature is
(a) 30°C
(b) 28°C
(c) 36°C
(d) 32°C

Answer

Answer: (a) 30°C

MCQ On Thermal Properties Of Matter Class 11 Question 4.
For which of the following process, the thermal conduction is maximum?
(a) Combustion
(b) Radiation
(c) Convection
(d) Conduction

Answer

Answer: (b) Radiation

Thermal Properties Of Matter MCQs Question 5.
A bucket full of hot water is kept in a room and it cools from 75°C to 70°C in t1 minutes from 70°C to 65°C in t2 minutes and from 65°C to 60°C in t3 minutes; then
(a) t1 – t2 = t3
(b) t1 < t2 < t3
(c) t1 > t2 > t3
(d) t1 < t2 > t3

Answer

Answer: (b) t1 < t2 < t3

MCQ On Thermal Properties Of Matter Question 6.
The good absorber of heat are
(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished

Answer

Answer: (c) Good-emitter

MCQs On Thermal Properties Of Matter Question 7.
Two stars A and B radiate maximum energy at 3600°A and 3600°A respectively. Then the ratio of absolute temperatures of A and B is
(a) 256 : 81
(b) 81 : 256
(c) 3 : 4
(d) 4 : 3

Answer

Answer: (d) 4 : 3

Thermal Properties Of Matter Questions And Answers Pdf Question 8.
A person with dark skin as compared to a person with white skin will experience
(a) Less heat and less cold
(b) More heat and more cold
(c) More heat and less cold
(d) Less heat and more cold.

Answer

Answer: (b) More heat and more cold

MCQ Of Thermal Properties Of Matter Question 9.
A cup of tea cools from 80°C to 60°C in one minute. The ambient temperature is 30°C. in cooling from 60°C to 50°C, it will take.
(a) 50 sec
(b) 90 sec
(c) 60 sec
(d) 30 sec

Answer

Answer: (a) 50 sec

Physics Chapter 11 Heat MCQs Question 10.
The best ideal black body is
(a) Lamp of charcoal heated to high temperature
(b) Metal coated with a black dye
(c) Glass surface coated with coalter
(d) Hollow enclosure blackened inside and having a small hole

Answer

Answer: (d) Hollow enclosure blackened inside and having a small hole

Class 11 Physics Thermal Properties Of Matter MCQ Question 11.
The earth intercepts approximately one billionth of the power radiated by the sun. if the surface temperature of the sun were to drop by a factor of 2, the average radiant energy incident on earth per second would reduce by factor of
(a) 2
(b) 4
(c) 8
(d) 16

Answer

Answer: (d) 16

MCQ Questions For Class 11 Physics Chapter 11 Question 12.
The process of heat transfer in which heat is transferred with actual migration of medium particles is known as (AFMC-94)
(a) Conduction
(b) Convection
(c) Radiation
(d) Reflection

Answer

Answer: (b) Convection

Questions On Thermal Properties Of Matter Question 13.
Unit of Stefans constant is given by
(a) W/ m K²
(b) W/ m² K²
(c) W²/ m² K4
(d) W/ mK

Answer

Answer: (b) W/ m² K²

Class 11 Physics Chapter 11 MCQ Question 14.
A metal piece heated to T1°K. The temperature of the surrounding is T2°K. the heat in the surrounding due to radiation is proportional to
(a) (T14 – T24)
(b) (T1 – T2)4
(c) (T14 + T24)
(d) (T13 – T23)

Answer

Answer: (a) (T14 – T24)

Thermal Properties Of Matter Class 11 Extra Questions Question 15.
The earth receives at its surface radiation from the sun at the rate of 1400 W/m². the distance of the centre of the sun from the surface of the earth is 1.5 1011 m and the radius of the sun is 7.0 108 m. treating sun as a black body, it follows from the above data that its surface temperature is,
(a) 5801 K
(b) 106 K
(c) 50.1 K
(d) 2801 C

Answer

Answer: (a) 5801 K

Question 16.
A surface at temperature T0°K receives power P by radiation from a small sphere at temperature T >> T0 and at a distance d. if both T and d are doubled, the power received by surface will becomes approximately
(a) P
(b) 2p
(c) 4p
(d) 16p

Answer

Answer: (c) 4p

Question 17.
The temperature of a piece of metal is raised from 27°C to 51.2°C. the rate at which metal radiates energy increases nearly
(a) 1.36 times
(b) 2.36 times
(c) 3.36 times
(d) 4.36 times

Answer

Answer: (a) 1.36 times

Question 18.
Emissivity of perfectly black body is
(a) 1
(b) 2
(c) 5
(d) 0

Answer

Answer: (a) 1

Question 19.
The good absorber of heat are
(a) Non-emitter
(b) Poor-emitter
(c) Good-emitter
(d) Highly polished

Answer

Answer: (c) Good-emitter

Question 20.
Co-efficient of reflection, coefficient of absorption and coefficient transmission are related as
(a) a + r + 1 = 1
(b) a + r + t1 1
(c) a + r = -t
(d) a1 r + 1

Answer

Answer: (a) a + r + 1 = 1

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

Class 11 Physics MCQ:

MCQ Questions for Class 11 Physics Chapter 3 Motion in a Straight Line with Answers

Motion in a Straight Line Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 3 Motion in a Straight Line with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Motion in a Straight Line Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 3 MCQ With Answers

Physics Class 9 Chapter 3 MCQs On Motion in a Straight Line

Motion In A Straight Line Class 11 MCQ Question 1.
The displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to
(a) 1 s
(b) 2 s
(c) 3 s
(d) 4 s

Answer

Answer: (b) 2 s

Class 11 Physics Chapter 3 MCQ Question 2.
A boy starts from a point A, travels to a point B at a distance of 3 km from A and returns to A. If he takes two hours to do so, his speed is
(a) 3 km/h
(b) zero
(c) 2 km/h
(d) 1.5 km/h

Answer

Answer: (a) 3 km/h

Motion In A Straight Line MCQ Question 3.
A 180 metre long train is moving due north at a speed of 25 m/s. A small bird is flying due south, a little above the train, with a speed of 5 m/s. The time taken by the bird to cross the train is
(a) 10 s
(b) 12 s
(c) 9 s
(d) 6 s

Answer

Answer: (d) 6 s

MCQ Questions For Class 11 Physics Chapter 3 Question 4.
A boy starts from a point A, travels to a point B at a distance of 1.5 km and returns to A. If he takes one hour to do so, his average velocity is
(a) 3 km/h
(b) zero
(c) 1.5 km/h
(d) 2 km/h

Answer

Answer: (b) zero

Motion In A Straight Line Class 11 MCQs Question 5.
A body starts from rest and travels with uniform acceleration on a straight line. If its velocity after making a displacement of 32 m is 8 m/s, its acceleration is
(a) 1 m/s²
(b) 2 m/s²
(c) 3 m/s²
(d) 4 m/s²

Answer

Answer: (a) 1 m/s²

Class 11 Physics Chapter 3 MCQ With Answers Question 6.
Which one of the following is the unit of velocity?
(a) kilogram
(b) metre
(c) m/s
(d) second

Answer

Answer: (c) m/s

Motion In Straight Line Class 11 MCQ Question 7.
A body starts from rest and travels for t second with uniform acceleration of 2 m/s². If the displacement made by it is 16 m, the time of travel t is
(a) 4 s
(b) 3 s
(c) 6 s
(d) 8 s

Answer

Answer: (a) 4 s

Ch 3 Physics Class 11 MCQ Question 8.
The dimensional formula for speed is
(a) T-1
(b) LT-1
(c) L-1T-1
(d) L-1T

Answer

Answer: (b) LT-1

Class 11 Physics Ch 3 MCQ Question 9.
The dimensional formula for velocity is
(a) [LT]
(b) [LT-1]
(c) [L2T]
(d) [L-1T]

Answer

Answer: (b) [LT-1]

Motion In Straight Line MCQ Question 10.
A body starts from rest and travels with an acceleration of 2 m/s². After t seconds its velocity is 10 m/s . Then t is
(a) 10 s
(b) 5 s
(c) 20 s
(d) 6 s

Answer

Answer: (b) 5 s

Class 11 Motion In A Straight Line MCQ Question 11.
A boy starts from a point A, travels to a point B at a distance of 1.5 km and returns to A. If he takes one hour to do so, his average velocity is
(a) 3 km/h
(b) zero
(c) 1.5 km/h
(d) 2 km/h

Answer

Answer: (b) zero

Chapter 3 Physics Class 11 MCQ Question 12.
A body starts from rest. If it travels with an acceleration of 2 m/s², its displacement at the end of 3 seconds is
(a) 9 m
(b) 12 m
(c) 16 m
(d) 10 m

Answer

Answer: (a) 9 m

Physics Class 11 Chapter 3 MCQ Question 13.
A body starts from rest and travels with uniform acceleration of 2 m/s². If its velocity is v after making a displacement of 9 m, then v is
(a) 8 m/s
(b) 6 m/s
(c) 10 m/s
(d) 4 m/s

Answer

Answer: (b) 6 m/s

Chapter 3 Physics Class 11 MCQs Question 14.
A body starts from rest and travels with an acceleration of 2 m/s². After t seconds its velocity is 10 m/s. Then t is
(a) 10 s
(b) 5 s
(c) 20 s
(d) 6 s

Answer

Answer: (b) 5 s

MCQ Of Ch 3 Physics Class 11 Question 15.
A body starts from rest and travels for five seconds to make a displacement of 25 m if it has travelled the distance with uniform acceleration a then a is
(a) 3 m/s²
(b) 4 m/s²
(c) 2 m/s²
(d) 1 m/s²

Answer

Answer: (c) 2 m/s²

MCQ On Motion In A Straight Line Question 16:
A boy moves on a circular distance of radius R. Starting from a point A he moves to a point B which is on the other end of the diameter AB. The ratio of the distance travelled to the displacement made by him is
(a) ∏/2
(b) ∏
(c) 2∏
(d) 4∏

Answer

Answer: (a) ∏/2

Class 11 Physics Motion In A Straight Line MCQ With Answers Question 17.
The dimensional formula for acceleration is
(a) [LT2]
(b) [LT?2]
(c) [L2T]
(d) [L2T2]

Answer

Answer: (b) [LT?2]

MCQ Of Chapter 3 Physics Class 11 Question 18.
A body starts from rest and travels with uniform acceleration a to make a displacement of 6 m. If its velocity after making the displacement is 6 m/s, then its uniform acceleration a is
(a) 6 m/s²
(b) 2 m/s²
(c) 3 m/s²
(d) 4 m/s²

Answer

Answer: (c) 3 m/s²

MCQ Class 11 Physics Chapter 3 Question 19.
Which one of the following is the unit of velocity?
(a) kilogram
(b) metre
(c) m/s
(d) second

Answer

Answer: (c) m/s

Physics Chapter 3 MCQ Class 11 Question 20.
The displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to
(a) 1 s
(b) 2 s
(c) 3 s
(d) 4 s

Answer

Answer: (b) 2 s

We hope the given NCERT MCQ Questions for Class 11 Physics Chapter 3 Motion in a Straight Line with Answers Pdf free download will help you. If you have any queries regarding CBSE Class 11 Physics Motion in a Straight Line MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 11 Physics MCQ:

MCQ Questions For Class 6 Science Chapter 10 Motion And Measurement Of Distances With Answers

Motion and Measurement of Distances Class 6 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 6 Science Chapter 10 Motion and Measurement of Distances with Answers Pdf free download. MCQ Questions for Class 6 Science with Answers were prepared based on the latest exam pattern. We have provided Motion and Measurement of Distances Class 6 Science MCQs Questions with Answers to help students understand the concept very well.

You can refer to NCERT Solutions for Class 6 Science Chapter 10 Motion and Measurement of Distances to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 6 Science Chapter 10 MCQ With Answers

Science Class 6 Chapter 10 MCQs On Motion and Measurement of Distances

Choose the correct option in the following questions:

Class 6 Science Chapter 10 MCQ Question 1.
Which is a standard unit of measurement?
(a) Angul (finger)
(b) Mutthi (fist)
(c) Step
(d) Inch

Answer

Answer: (d) Inch
Explanation:
All other units vary from person to person

Motion And Measurement Of Distances Class 6 MCQs Question 2.
What is the SI unit of length?
(a) Metre
(b) Centimetre
(c) Kilometre
(d) All of these

Answer

Answer: (a) Metre
Explanation:
All other are multiples of metre.

MCQ Questions For Class 6 Science Chapter 10 Question 3.
4 kilometres are equal to
(a) 4,00,000 metre
(b) 40,000 metre
(c) 4,00p metre
(d) 400 metre

Answer

Answer: (c) 4,00p metre
Explanation:
1 km = 1000 m, 4 km = 4000 m

Motion And Measurement Class 6 MCQ Question 4.
15 cm are equal to
(a) 150 mm
(b) 15 mm
(c) 1.5 mm
(d) 0.15 mm

Answer

Answer: (a) 150 mm
Explanation:
1 cm = 10 mm, 15 cm = 150 mm

Measurement And Motion Class 6 MCQ Question 5.
Which is a correct relationship?
(a) 1 m = 100 cm
(b) 1 cm = 100 mm
(c) 1 km = 100 m
(d) all of these

Answer

Answer: (d) all of these
Explanation: 1 m = 100 cm.

MCQ On Motion And Measurement Of Distances Class 6 Question 6.
In the following figure, the proper way of reading scale is
MCQ On Motion And Measurement Of Distances Class 6
(a) C
(b) B
(c) A
(d) Any way can be choosen

Answer

Answer: (c) A
Explanation:
B and C are incorrect positions.

Motion And Measurement Of Distances Class 6 MCQ With Answers Question 7.
An example of rectilinear motion is
(a) apple falling from a tree
(b) motion of a car on road
(c) a spinning top
(d) both (a) and (b)

Answer

Answer: (d) both (a) and (b)
Explanation:
Apple falling from a tree and motion of a car on road are the examples of rectilinear motion.

Ncert Class 6 Science Chapter 10 MCQ Question 8.
Which is an example of a periodic motion?
(a) Oscillation of a pendulum
(b) Motion of a bus on road
(c) A spinning top
(d) A stone dropped from a certain height

Answer

Answer: (a) Oscillation of a pendulum
Explanation:
Oscillation of a pendulum is an example of periodic motion.

Class 6 Science Ch 10 MCQ Question 9.
What kind of motion is executed by a pendulum of a wall clock?
(a) Oscillatory motion
(b) Vibratory motion
(c) Circular motion
(d) Linear motion

Answer

Answer: (a) Oscillatory motion
Explanation:
The to-and-fro motion of a body along the same path is called oscillatory motion.

Motion And Measurement Of Distances Class 6 MCQ Question 10.
One metre is equal to ………….. millimetre.
(a) 10
(b) 1000
(c) 100
(d) 10000

Answer

Answer: (b) 1000
Explanation:
1 metre = 1000 millimetre.

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

Column A Column B
(a) Metre (i) Unit used to measure very small distances.
(b) Yard (ii) Unit used to measure large distances.
(c) Hand span (iii) SI unit of length.
(d) LeaSt count (iv) Non-standard unit of length.
(e) Millimetre (v) Standard unit of length.
(f) Kilometre (vi) Apple falling from a tree.
(g) Rest (vii) Motion of the tip of the blade of a fan.
(h) Motion (viii) Motion of a pendulum.
(i) Circular motion (ix)Motion of a top.
(j) Rectilinear motion (x) State of moving objects.
(k) Rotational motion (xi) State of stationary objects.
(l) Periodic motion (xii) Minimum amount that can be measured by a device.
Answer

Answer:

Column A Column B
(a) Metre (iii) SI unit of length.
(b) Yard (v) Standard unit of length.
(c) Hand span (iv) Non-standard unit of length.
(d) LeaSt count (xii) Minimum amount that can be measured by a device.
(e) Millimetre (i) Unit used to measure very small distances.
(f) Kilometre (ii) Unit used to measure large distances.
(g) Rest (xi) State of stationary objects.
(h) Motion (x) State of moving objects.
(i) Circular motion (vii) Motion of the tip of the blade of a fan.
(j) Rectilinear motion (vi) Apple falling from a tree.
(k) Rotational motion (ix)Motion of a top.
(l)Periodic motion (viii) Motion of a pendulum.

Fill in the blanks with appropriate words:

1. Striker in the game of carroms moves in a …………. .

Answer

Answer: straight line

2. Powerful shot by a batsman makes the ball move in ………….. motion.

Answer

Answer: rectilinear

3. Moving ceiling fan is an example of …………… motion.

Answer

Answer: circular

4. Rotational motion is known as ………….. motion also.

Answer

Answer: periodic

5. …………….. motion is also a periodic motion.

Answer

Answer: Oscillatory

6. Invention of…………. made great change in modes of transport.

Answer

Answer: wheel

7. Measurement means the comparison of an ………………….. quantity with some ……….. quantity of the same kind.

Answer

Answer: unknown, known

8. It was the …………………. who developed the ‘foot’ as their unit of length.

Answer

Answer: Greeks

9. In 1790, the French created a standard unit of measurement called the ……….. system.

Answer

Answer: metric

10. System of units now used is known as ……………… system.

Answer

Answer: S.I.

11. Each metre is decided into 100 equal divisions, called ……………. .

Answer

Answer: centimetre

12. Each centimetre has ………………. equal divisions called millimetre.

Answer

Answer: ten

13. Motion is the change in …………….. of an object.

Answer

Answer: position

14. Motion of a branch of tree is …………….. motion.

Answer

Answer: periodic

15. A ball rolling on ground executes a rectilinear motion as well as ……………. motion.

Answer

Answer: rotational

State whether the statements given below are True or False:

1. Swinging of our arms or legs are periodic motions.

Answer

Answer: False

2. Beating of our heart is non-periodic motion.

Answer

Answer: True

3. Periodic motion helps us to measure time.

Answer

Answer: True

4. In a circular motion; the objects or any of their parts move in a circular path.

Answer

Answer: True

5. Motion of second’s hand of a clock is rectilinear.

Answer

Answer: False

6. SI unit of length is ‘Foot’.

Answer

Answer: False

7. For measuring large distances metre is not a convenient unit.

Answer

Answer: True

8. Motion of a vehicle on a straight road is a rectilinear motion.

Answer

Answer: True

9. Marchpast of soldiers in a parade is a periodic motion.

Answer

Answer: False

10. Motion of second’s hand in a clock is a circular motion.

Answer

Answer: True

11. In rotational motion whole body moves about an axis.

Answer

Answer: True

12. The result of a measurement is expressed in two parts.

Answer

Answer: True

We hope the given NCERT MCQ Questions for Class 6 Science Chapter 10 Motion and Measurement of Distances with Answers Pdf free download will help you. If you have any queries regarding Motion and Measurement of Distances CBSE Class 6 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 6 Science MCQ:

MCQ Questions for Class 6 Science Chapter 4 Sorting Materials Into Groups with Answers

Sorting Materials Into Groups Class 6 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 6 Science Chapter 4 Sorting Materials Into Groups with Answers Pdf free download. MCQ Questions for Class 6 Science with Answers were prepared based on the latest exam pattern. We have provided Sorting Materials Into Groups Class 6 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-6-science-with-answers/

You can refer to NCERT Solutions for Class 6 Science Chapter 4 Sorting Materials Into Groups to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 6 Science Chapter 4 MCQ With Answers

Science Class 6 Chapter 4 MCQs On Sorting Materials Into Groups

Choose the correct option in the following questions:

Class 6 Science Chapter 4 MCQ Question 1.
What makes the basis of sorting materials into groups?
(a) Similarities in their properties
(b) Differences in their properties
(c) Both similarities and differences in their properties
(d) All of these

Answer

Answer: (c) Both similarities and differences in their properties
Explanation:
Materials are grouped on the basis of similarities and dissimilarities.

MCQ Questions For Class 6 Science Chapter 4 Question 2.
Which one will show a metallic lustre?
(a) Any surface of a metal
(b) Freshly cut surface of a metal
(c) Freshly cut surface of non-metal
(d) Surfaces of all materials

Answer

Answer: (b) Freshly cut surface of a metal
Explanation:
Metals when cut, their freshly cut surface has shining.

Sorting Materials Into Groups Class 6 MCQ Question 3.
An oily thin paper sheet will be
(a) transparent
(b) translucent
(c) opaque
(d) cannot be predicted

Answer

Answer: (b) translucent
Explanation:
Only a part of light passes through it.

Sorting Materials Into Groups Class 6 Quiz Question 4.
Purpose of sorting material into groups is
(a) to rtudy their properties
(b) convenience
(c) both (a) and (b)
(d) inconvenience

Answer

Answer: (c) both (a) and (b)
Explanation:
Materials are grouped for our convenience and to study their properties.

Sorting Materials Into Groups MCQ Question 5.
Which is a set of transparent materials?
(a) Glass and air
(b) Water and glass
(c) Water and air
(d) All of these

Answer

Answer: (d) All of these
Explanation:
Glass, air and water, all are transparent.

Ncert Class 6 Science Chapter 4 MCQ Question 6.
Choose the opaque object from the following:
(a) Charcoal
(b) Air
(c) Glass
(d) Water

Answer

Answer: (a) Charcoal
Explanation:
Except charcoal, all the three will allow the light to pass.

Class 6 Science Chapter 4 MCQ With Answers Question 7.
Which one of the following is not soluble in water?
(a) Turmeric powder
(b) Common salt
(c) Alum
(d) All are soluble

Answer

Answer: (a) Turmeric powder
Explanation:
Only turmeric powder is not soluble in water.

Sorting Materials Into Groups Class 6 MCQ With Answers Question 8.
Which object shines?
(a) Plastic toy
(b) Cotton shirt
(c) Steel spoon
(d) Stone piece

Answer

Answer: (c) Steel spoon
Explanation:
Steel spoon is a metallic object while all others are non-metals.

MCQ On Sorting Materials Into Groups Question 9.
Which of the following has reddish brown colour?
(a) Gold
(b) Copper
(c) Iron
(d) Brass

Answer

Answer: (c) Iron
Explanation:
Iron has reddish brown colour.

Class 6 Science Ch 4 MCQ Question 10.
Which one of the following is insoluble in water?
(a) Alcohol
(b) Sodium chloride
(c) Coconut oil
(d) Sugar

Answer

Answer: (c) Coconut oil
Explanation:
Coconut oil is insoluble in water.

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

Column A Column B
(a) Glass, air (i) Floats on water
(b) Iron sheet and cardboard (ii) Translucent
(c) Oily paper sheet (iii) Metallic lustre
(d) Sugar and salt (iv) Transparent
(e) Gold and silver (v) Opaque
(f) Wax (vi) Soluble in water
Answer

Answer:

Column A Column B
(a) Glass, air (iv) Transparent
(b) Iron sheet and cardboard (v) Opaque
(c) Oily paper sheet (ii) Translucent
(d) Sugar and salt (vi) Soluble in water
(e) Gold and silver (iii) Metallic lustre
(f) Wax (i) Floats on water

Fill in the blanks with appropriate words:

1. Grouping of things is done for ………….. .

Answer

Answer: convenience

2. Classification is done on the basis of some ……………. and ………… .

Answer

Answer: Similarities, differences

3. A thing can be made of different ……………. .

Answer

Answer: materials

4. Different materials can be used to make ……………. .

Answer

Answer: same thing

5. Mustard oil is ……………….. in water.

Answer

Answer: immiscible

6. A sugar syrup is a ……………….. .

Answer

Answer: solution

7. Blue Vitriol (Neela though) is ……………… in water.

Answer

Answer: soluble

8. Sand is ……………. in water.

Answer

Answer: insoluble

9. Lemon juice is ………………… in water.

Answer

Answer: miscible

10. …………………. substances are those through which we can easily see.

Answer

Answer: Transparent

11. Materials which conduct heat quickly are called …………………….. of heat.

Answer

Answer: conductor

12. Iron is a …………… material.

Answer

Answer: natural

State whether the statements given below are True or False:

1. Grouping is a useful process.

Answer

Answer: True

2. All objects are made up of same kind of materials.

Answer

Answer: False

3. Things can be grouped on the basis of their shape and size.

Answer

Answer: True

4. Different types of materials have different properties.

Answer

Answer: True

5. Same thing can be made from different materials.

Answer

Answer: True

6. Things made of gold and aluminium have no lustre.

Answer

Answer: False

7. Use of a material depends on its properties and the purpose for which it is to be used.

Answer

Answer: True

8. A looking mirror or thing made of metals are smooth to touch.

Answer

Answer: True

9. All materials can be felt by one or more of our senses.

Answer

Answer: True

10. The amount of matter in any object is called its weight.

Answer

Answer: False

11. The materials which do not allow light to pass through them are called opaque

Answer

Answer: True

12. The materials which conduct heat very slowly are called non-conductor of heat.

Answer

Answer: False

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Class 6 Science MCQ:

MCQ Questions for Class 11 Physics Chapter 4 Motion in a Plane with Answers

Motion in a Plane Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 4 Motion in a Plane with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Motion in a Plane Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 4 MCQ With Answers

Physics Class 9 Chapter 4 MCQs On Motion in a Plane

Motion In A Plane Class 11 MCQ Question 1.
The angular velocity depends upon the rate of change of the?
(a) Angular acceleration
(b) Angular Distance.
(c) Angular Displacement.
(d) torque

Answer

Answer: (c) Angular Displacement.

Class 11 Physics Chapter 4 MCQ Question 2.
A small body attached at the end of an inextensible string completes a vertical circle, then its
(a) angular momentum remains constant
(b) linear momentum remains constant
(c) angular velocity remains constant
(d) total mechanical energy remains constant

Answer

Answer: (d) total mechanical energy remains constant

MCQ Questions For Class 11 Physics Chapter 4 Question 3.
A cyclist goes round a circular path of circumference 343 m in s. The angle made by him, with the vertical is
(a) 440
(b) 420
(c) 430
(d) 450

Answer

Answer: (d) 450

Motion In Plane Class 11 MCQ Question 4.
A body makes a displacement of 4 m due East from a point O and then makes displacement of 3 m due North. Its resultant displacement from O
(a) 7 m
(b) 1 m
(c) 5 m
(d) 1 . 2 m

Answer

Answer: (c) 5 m

Class 11 Physics Chapter 4 MCQ With Answers Question 5.
A body is traveling in a circle at constant speed. It
(a) has an inward acceleration
(b) has constant velocity.
(c) has no acceleration
(d) has an outward radial acceleration

Answer

Answer: (a) has an inward acceleration

MCQ On Motion In A Plane Class 11 Question 6.
When a body P moves on a circular path, the centripetal acceleration is
(a) directed inwards from P, to the centre of the circle
(b) directed tangential to the circumference of the circle, at P
(c) directed perpendicular to the planc of the circle, at P
(d) directed outward, perpendicular to the circumference of the circle

Answer

Answer: (a) directed inwards from P, to the centre of the circle

Ch 4 Physics Class 11 MCQ Question 7.
A coin kept on a rotating gramophone disc just begins to slip if its centre is at a distance of 8 cm from the centre of the disc. The angular velocity of the gramophone disc is then doubled. Through what distance, the coin should be shifted towards the centre, so that the coin will just slip?
(a) 2 cm
(b) 6 cm
(c) 16 cm
(d) 4 cm

Answer

Answer: (a) 2 cm

Class 11 Physics Ch 4 MCQ Question 8.
A can filled with water is revolved in a vertical circle of radius 4 metre and the water does not fall down. The time period of revolution will be
(a) 4 sec
(b) 10 sec
(c) 8 sec
(d) 1 sec

Answer

Answer: (a) 4 sec

Chapter 4 Physics Class 11 MCQs Question 9.
When angular velocity changes with respect to time then?
(a) an angular acceleration is produced
(b) a linear acceleration is produced
(c) it constitute a couple
(d) a linear velocity is produced

Answer

Answer: (a) an angular acceleration is produced

Motion In A Plane MCQ Class 11 Question 10.
The total flight requires a time that is?
(a) four times the time necessary to reach the maximum height.
(b) thrice the time necessary to reach the maximum height
(c) equal to the time necessary to reach the maximum height.
(d) twice the time necessary to reach the maximum height

Answer

Answer: (d) twice the time necessary to reach the maximum height

MCQ Questions On Motion In A Plane Class 11 Question 11.
The path followed by a projectile is called its?
(a) Territory
(b) Treasury
(c) Tractor
(d) Trajectory

Answer

Answer: (d) Trajectory

Chapter 4 Physics Class 11 MCQ Question 12.
One radian is defined to be the angle subtended where the arc length S is exactly equal to the?
(a) radius of the circle.
(b) diameter of the circle.
(c) circumference of the circle.
(d) half of radius of the circle.

Answer

Answer: (a) radius of the circle.

MCQ Of Motion In Plane Class 11 Question 13.
A car sometimes overturns while taking a turn. When it overturns, it is
(a) the inner wheel which leaves the ground first
(b) either inner wheel or the outer wheel leaves the ground
(c) both the wheel leave the ground simultaneously
(d) the outer wheel which leaves the ground first

Answer

Answer: (a) the inner wheel which leaves the ground first

MCQ Of Chapter 4 Physics Class 11 Question 14.
A body travels along the circumference of a circle of radius 2 m with a linear velocity of 6 m/s . Then its angular velocity is
(a) 6 rad /s
(b) 3 rad /s
(c) 2 rad / s
(d) 4 rad / s

Answer

Answer: (b) 3 rad /s

Class 11 Motion In A Plane MCQ Question 15.
The centripetal component of acceleration arises when?
(a) The direction of motion is changed.
(b) The direction propagation is changed.
(c) The direction of gravity is changed.
(d) The direction of projectile is changed.

Answer

Answer: (a) The direction of motion is changed.

Question 16.
The word centripetal is derived from two Greek words meaning?
(a) Seeking the situation.
(b) Seeking the centre.
(c) Touching the centre.
(d) Leaving the centre.

Answer

Answer: (b) Seeking the centre.

Question 17.
A car is moving with a speed of 30 m/s on a circular path of radius 500 m. Its speed is increasing at the rate of 2 m/s². The acceleration of the car is
(a) 2 m/s²
(b) 9.8 m/s²
(c) 1.8 m/2
(d) 2.7 m/s²

Answer

Answer: (d) 2.7 m/s²

Question 18.
One radian is equal to?
(a) 57.7o
(b) 53.7o
(c) 59.3o
(d) 57.3o

Answer

Answer: (d) 57.3o

Question 19.
A body is moving along a circle with an increasing speed. It possesses?
(a) centripetal acceleration only (ac)
(b) tangential acceleration only (ar)
(c) both tangential and centripetal acceleration (ar and ac)
(d) No acceleration

Answer

Answer: (c) both tangential and centripetal acceleration (ar and ac)

Question 20.
The path of a particle is given by the expression y = at + bt², where a and b are constants . Y is the displacement at time t. Its velocity at any instant is given by
(a) a + 2bt
(b) zero
(c) 2bt
(d) at

Answer

Answer: (a) a + 2bt

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MCQ Questions for Class 11 Physics Chapter 2 Units and Measurements with Answers

Units and Measurements Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 2 Units and Measurements with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Units and Measurements Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 2 MCQ With Answers

Physics Class 9 Chapter 2 MCQs On Units and Measurements

Units And Measurements Class 11 MCQ Question 1.
Physical quantities are
(a) quantities such as degrees, radians and steradians
(b) quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity
(c) quantities such as pounds, dollars and rupees
(d) quantities such as kilos, pounds and gallons

Answer

Answer: (b) quantities such as length, mass, time, electric current, thermodynamic temperature, amount of substance, and luminous intensity

Class 11 Physics Chapter 2 MCQ Question 2.
Which of the following pairs has the same dimensions?
(a) specific heat and latent heat
(b) lmpulse and momentum
(c) surface tension and force
(d) moment of lnertia and torque

Answer

Answer: (b) lmpulse and momentum

Unit And Measurement Class 11 MCQ Question 3.
The dimensions of kinetic energy is
(a) [M 2L2T]
(b) [ML 2T]
(c) [ML 2T-2]
(d) [ML 2T-1]

Answer

Answer: (c) [ML 2T-2]

MCQ Questions For Class 11 Physics Chapter 2 Question 4.
A force F is given by F = at + bt², where t is time. What are the dimensions of a and b?
(a) MLT-1 and MLT0
(b) MLT-3 and ML2T4
(c) MLT-4 and MLT1
(d) MLT-3 and MLT-4

Answer

Answer: (d) MLT-3 and MLT-4

Class 11 Physics Chapter 2 MCQ With Answers Question 5.
The atmospheric pressure is 106 dyne/cm². What is its value in SI unit?
(a) 105 newton/m²
(b) 106 newton/m²
(c) 104 newton/m²
(d) 103 newton/m²

Answer

Answer: (a) 105 newton/m²

Class 11 Physics Ch 2 MCQ Question 6.
In a system of units if force (F), acceleration (A) and time (T) are taken as fundamentals units then the dimensional formula of energy is
(a) FA2T
(b) FAT2
(c) FA2T
(d) FAT

Answer

Answer: (b) FAT2

Ch 2 Physics Class 11 MCQ Question 7.
If force (F), work (W) and velocity (v) are taken as fundamental quantities. What is the dimensional formula of time (T)?
(a) [WFv]
(b) [WFv-1]
(c) [W-1F -1v]
(d) [WF-1v -1]

Answer

Answer: (d) [WF-1v -1]

Physics Class 11 Chapter 2 MCQ Question 8.
The dimensions of kinetic energy is same as that of
(a) force
(b) pressure
(c) work
(d) momentum

Answer

Answer: (c) work

MCQs Of Physics Class 11 Chapter 2 Question 9.
Which of the following groups have different dimensions?
(a) Potential difference, EMF, voltage
(b) Pressure, stress, Youngs modulus
(c) Heat, energy, work done
(d) Dipole moment, electric flux, electric field

Answer

Answer: (d) Dipole moment, electric flux, electric field

MCQ Class 11 Physics Chapter 2 Question 10.
ML-1T -2 is the dimensional formula of
(a) magnetic induction
(b) self-inductance
(c) electric potential
(d) electric field

Answer

Answer: (a) magnetic induction

Units And Measurements MCQ Question 11.
What is the dimensional formula of magnetic field?
(a) MT-2A-1
(b) MT-1A-2
(c) M-1L-2TA-1
(d) M-1LTA-2

Answer

Answer: (a) MT-2A-1

MCQ On Units And Measurements Question 12.
Electron volt is a unit of
(a) charge
(b) potential difference
(c) energy
(d) magnetic force

Answer

Answer: (c) energy

MCQ Questions On Units And Measurements Class 11 Question 13.
The volume of a cube in m³ is equal to the surface area of the cube in m². The volume of the cube is
(a) 64 m³
(b) 216 m³
(c) 512 m³
(d) 196 m³

Answer

Answer: (b) 216 m³

MCQ On Units And Measurements Class 11 Pdf With Answers Question 14.
In SI system the fundamental units are
(a) meter, kilogram, second, ampere, Kelvin, mole and candela
(b) meter, kilogram, second, coulomb, Kelvin, mole and candela
(c) meter, Newton, second, ampere, Kelvin, mole and candela
(d) meter, kilogram, second, ampere, Kelvin, mole and lux

Answer

Answer: (b) meter, kilogram, second, coulomb, Kelvin, mole and candela

Chapter 2 Physics Class 11 MCQ Question 15.
Which one of the following represents the correct dimensions of the coefficient of viscosity?
(a) [ML-1T-2]
(b) [MLT-1]
(c) [ML-1T-1]
(d) [ML-2T-2]

Answer

Answer: (c) [ML-1T-1]

MCQ Of Units And Measurements Class 11 Question 16.
A particle starting from the origin (0, 0) moves in a straight line in the (x, y) plane. Its coordinates at a later time are the path of the particle makes with the x-axis an angle of
(a) 300
(b) 450
(c) 600
(d) 0

Answer

Answer: (c) 600

MCQ Questions For Class 11 Physics Chapter 1 Units And Measurements Question 17.
Resolution is
(a) a measure of the bias in the instrument
(b) None of these
(c) the smallest amount of input signal change that the instrument can detect reliably
(d) a measure of the systematic errors

Answer

Answer: (d) a measure of the systematic errors

Class 11 Units And Measurements MCQ Question 18.
Absolute error of the measurement is
(a) the difference between the individual measurement and the true value of the quantity cubed.
(b) the difference between the individual measurement and the true value of the quantity squared.
(c) the difference between two individual measurements and their mean
(d) the difference between the individual measurement and the true value of the quantity

Answer

Answer: (a) the difference between the individual measurement and the true value of the quantity cubed.

MCQ Physics Class 11 Chapter 2 Question 19.
Which of the following units denotes the dimensions [ML2/Q2], where Q represents the electric charge?
(a) Wb/m²
(b) Henry(H)
(c) H/m²
(d) Weber(Wb)

Answer

Answer: (b) Henry(H)

MCQ Of Chapter 2 Physics Class 11 Question 20.
Light year is a unit of
(a) time
(b) distance
(c) sunlight intensity
(d) mass

Answer

Answer: (b) distance

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Class 11 Physics MCQ:

MCQ Questions for Class 11 Physics Chapter 7 System of Particles and Rotational Motion with Answers

System of Particles and Rotational Motion Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 7 System of Particles and Rotational Motion with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided System of Particles and Rotational Motion Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 7 MCQ With Answers

Physics Class 9 Chapter 7 MCQs On System of Particles and Rotational Motion

System Of Particles And Rotational Motion MCQ Question 1.
A body of M.I. 3 kg m² rotating with an angular velocity 2 rad/s has the same K.E. as a mass of 12 kg moving with a velocity of
(a) 1 m/s
(b) 2 m/s
(c) 4 m/s
(d) 8 m/s

Answer

Answer: (a) 1 m/s

System Of Particles And Rotational Motion Class 11 MCQ Question 2.
A particle performing uniform circular motion has angular momentum L. If its angular frequency is doubled and its kinetic energy halved, then the new angular momentum is
(a) L/2
(b) L/4
(c) 2 L
(d) 4 L

Answer

Answer: (b) L/4

Class 11 Physics Chapter 7 MCQ Question 3.
A thin uniform, circular ring is rolling down an inclined plane of inclination 300 without slipping. Its linear acceleration along the inclined plane will be
(a) g/2
(b) g/3
(c) g/4
(d) 2g/3

Answer

Answer: (a) g/2

Rotational Motion Class 11 MCQ Question 4.
Moment of inertia depends on
(a) Distribution of particles
(b) Mass
(c) Position of axis of rotation
(d) All of these

Answer

Answer: (d) All of these

MCQ Questions For Class 11 Physics Chapter 7 Question 5.
Calculate the M.I. of a thin uniform ring about an axis tangent to the ring and in a plane of the ring, if its M.I. about an axis passing through the centre and perpendicular to plane is 4 kg m².
(a) 12 kg m²
(b) 3 kg m²
(c) 6 kg m²
(d) 9 kg m²

Answer

Answer: (c) 6 kg m²

Chapter 7 Physics Class 11 MCQs Question 6.
If a body is rotating about an axis, passing through its centre of mass then its angular momentum is directed along its
(a) Radius
(b) Tangent
(c) Circumference
(d) Axis of rotation

Answer

Answer: (d) Axis of rotation

MCQ On System Of Particles And Rotational Motion Question 7.
A solid cylinder of mass 20 kg, has length 1 metre and radius 0.5m. then its momentum of inertia in kg m² about its geometrical axis is
(a) 2.5
(b) 5
(c) 1.5
(d) 3

Answer

Answer: (a) 2.5

Ch 7 Physics Class 11 MCQ Question 8.
A particle moves on a circular path with decreasing speed. Choose the correct statement.
(a) Angular momentum remains constant.
(b) Acceleration is towards the centre.
(c) Particle moves on a spiral path with decreasing radius.
(d) The direction of angular momentum remains constant.

Answer

Answer: (d) The direction of angular momentum remains constant.

Class 11 Physics Ch 7 MCQ Question 9.
The M.I. of uniform circular disc about a diameter is I. its M.I. about an axis perpendicular to its plane passing through a point on its rim will be
(a) 4 I
(b) 6 I
(c) 8 I
(d) 9 I

Answer

Answer: (b) 6 I

MCQ On Rotational Motion Class 11 Question 10.
Which is the wrong relation from the following?
(a) t = I a
(b) F = ma
(c) L = I w
(d) I = t a

Answer

Answer: (d) I = t a

Class 11 Physics Chapter 7 MCQ With Answers Question 11.
A solid sphere is rotating in free space. If the radius of the sphere is increased keeping mass same, which one of the following will not be affected?
(a) Moment of inertia
(b) Angular momentum
(c) Angular velocity
(d) Rotational kinetic energy

Answer

Answer: (b) Angular momentum

Class 11 System Of Particles And Rotational Motion MCQ Question 12.
A particle moves on a circular path with decreasing speed. Choose the correct statement.
(a) Angular momentum remains constant.
(b) Acceleration is towards the centre.
(c) Particle moves on a spiral path with decreasing radius.
(d) The direction of angular momentum remains constant.

Answer

Answer: (d) The direction of angular momentum remains constant.

Class 11 Physics System Of Particles And Rotational Motion MCQ Question 13.
A body of M.I. 3 kg m² rotating with an angular velocity 2 rad/s has the same K.E. as a mass of 12 kg moving with a velocity of
(a) 1 m/s
(b) 2 m/s
(c) 4 m/s
(d) 8 m/s

Answer

Answer: (a) 1 m/s

Class 11 Rotational Motion MCQ Question 14.
A hollow cylinder and a solid cylinder having different mass diameter are released from rest simultaneously from the of an inclined plane. Which will reach the bottom first?
(a) solid cylinder
(b) cant be determined without knowing their masses
(c) hollow cylinder
(d) cant be determined without knowing their diameters

Answer

Answer: (a) solid cylinder

MCQ Of Chapter 7 Physics Class 11 Question 15.
Which is the wrong relation from the following?
(a) t = I a
(b) F = ma
(c) L = I w
(d) I = t a

Answer

Answer: (d) I = t a

MCQ Of Rotational Motion Class 11 Question 16.
If I, a and t are the moment of inertia, angular acceleration and torque respectively of a body rotating about any axis with angular velocity w, then
(a) t = Ia
(b) t = Iw
(c) I = tw
(d) a = Iw

Answer

Answer: (a) t = Ia

Chapter 7 Class 11 Physics MCQ Question 17.
A dancer on ice spins faster when she folds here arms. This is due to
(a) Increases in energy and increase in angular momentum
(b) Decrease in friction at the skates
(c) Constant angular momentum and increase in kinetic energy
(d) Increase in energy an decreases in angular momentum

Answer

Answer: (c) Constant angular momentum and increase in kinetic energy

System Of Particles And Rotational Motion MCQ Questions Question 18.
The moment of inertia of a uniform semicircular disc of mass M and radius about a line perpendicular to the plane of the disc through the centre is
(a) (2/5) Mr²
(b) (1/4) Mr power 2
(c) (1/2) Mr²
(d) Mr²

Answer

Answer: (c) (1/2) Mr²

Rotational Motion MCQ With Solutions Question 19.
A particle moves for 20 s with velocity 3 m/s and then moves with velocity 4 m/s for another 20 s and finally moves with velocity 5 m/s for next 20 s. what is the average velocity of the particle?
(a) 3 m/s
(b) 4 m/s
(c) 5 m/s
(d) Zero

Answer

Answer: (b) 4 m/s

Chapter 7 Physics Class 11 MCQ Question 20.
For increasing the angular velocity of an object by 10%, the kinetic energy has to be increased by
(a) 40%
(b) 20%
(c) 10%
(d) 21%

Answer

Answer: (d) 21%

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Class 11 Physics MCQ:

MCQ Questions for Class 11 Physics Chapter 14 Oscillations with Answers

Oscillations Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 14 Oscillations with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Oscillations Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 14 MCQ With Answers

Physics Class 9 Chapter 14 MCQs On Oscillations

MCQ On Oscillations Class 11 Chapter 14 Question 1.
In damped oscilation the directions of the restoring force and the resistive force
(a) are the same
(b) are opposite
(c) may be same or opposite
(d) have no relation with each other

Answer

Answer: (c) may be same or opposite

Oscillation MCQ With Solution Pdf Chapter 14 Class 11  Question 2.
The displacement y of a particle executing periodic motion is given by y = 4 cos² (t/2) sin (1000t). This expression may be considered to be a result of superposition of the following number of harmonic motions.
(a) two
(b) three
(c) four
(d) five

Answer

Answer: (b) three

Oscillation MCQ With Solution Chapter 14 Class 11 Question 3.
Spring is pulled down by 2 cm. What is amplitude of motion?
(a) 0 cm
(b) 6 cm
(c) 2 cm
(d) cm

Answer

Answer: (c) 2 cm

Oscillation MCQ Chapter 14 Class 11 Question 4.
One of the two clocks on the earth is controlled by a pendulum and other by a spring. If both the clocks are taken to the moon, then which clock will have the same time – period of the earth?
(a) spring clock
(b) pendulum clock
(c) both
(d) none

Answer

Answer: (a) spring clock

Oscillation MCQ Questions Chapter 14 Class 11 Question 5.
When a particle performing uniform circular motion of radius 10 cm undergoes the SHM, what will be its amplitude?
(a) 10 cm
(b) 5 cm
(c) 2.5 cm
(d) 20 cm

Answer

Answer: (a) 10 cm

Oscillation MCQ With Answers Chapter 14 Class 11 Question 6.
For a magnet of time period T magnetic moment is M, if the magnetic moment becomes one fourth of the initial value, then the time period of oscillation becomes.
(a) Half of initial value
(b) One fourth of initial value
(c) Double of initial value
(d) Four time initial value

Answer

Answer: (c) Double of initial value

Oscillation Class 11 MCQ Chapter 14  Question 7.
Time period of simple pendulum of length l and a place where acceleration due to gravity is g is T. what is the period of a simple pendulum of the same length at a place where the acceleration due to gravity is 1.029 is,
(a) T
(b) 1.02 T
(c) 0.99 T
(d) 1.01 T

Answer

Answer: (c) 0.99 T

MCQ On Oscillation Chapter 14 Class 11 Question 8.
In the case of forced oscillations, which of the following statements is not true?
(a) frequency equals that of external periodic force
(b) amplitude depends upon the damping coefficient
(c) amplitude tends to infinity at resonance
(d) higher the damping coefficient, lower is the amplitude at resonance

Answer

Answer: (c) amplitude tends to infinity at resonance

Question 9.
The motion of a particle executing simple harmonic motion is given by X = 0.01 sin 100p (t + 0.05), where X is in metres ant t in second. The time period in second is
(a) 0.001
(b) 0.02
(c) 0.1
(d) 0.2

Answer

Answer: (b) 0.02

Question 10.
In damped oscilation, the angular frequency of the oscillator
(a) keeps on decreasing
(b) keeps on increasing
(c) emains the same
(d) fluctuates

Answer

Answer: (c) emains the same

Question 11.
The acceleration of particle executing S.H.M. when it is at mean position is
(a) Infinite
(b) Varies
(c) Maximum
(d) Zero

Answer

Answer: (d) Zero

Question 12.
In SHM, graph of which of the following is a straight line?
(a) T.E. against displacement
(b) P.E. against displacement
(c) Acceleration against time
(d) Velocity against displacement

Answer

Answer: (a) T.E. against displacement

Question 13.
The period of thin magnet is 4 sec. if it is divided into two equal halves then the time period of each part will be
(a) 4 sec
(b) 1 sec
(c) 2 sec
(d) 8 sec

Answer

Answer: (c) 2 sec

Question 14.
If the length of seconds pendulum is increased by 2%, how may seconds it will lose per day?
(a) 3427 sec
(b) 3727 sec
(c) 3927 sec
(d) 864 sec

Answer

Answer: (d) 864 sec

Question 15.
Length of a simple pendulum executing simple harmonic motion is increased by 21%. The percentage increase in the time – period of the pendulum of increased length is
(a) 10%
(b) 1%
(c) 21%
(d) 42%

Answer

Answer: (a) 10%

Question 16.
If a simple harmonic oscillator has got a displacement of 0.02 m and acceleration equal to 2.0 ms-2 at any time, the angular frequency of the oscillator is equal to
(a) 10 rad s-1
(b) 1 rad s-1
(c) 100 rad s-1
(d) 1 rad s-1

Answer

Answer: (a) 10 rad s-1

Question 17.
The bob of a simple pendulum is a spherical hollow ball filled with water. A plugged hall near the bottom of the oscillating bob gets suddenly unplugged. During observation, till water is coming out, the time -period of the oscillation would
(a) first decrease and then increase to the original value
(b) first increase and then decrease to the original value
(c) increase towards a saturation value
(d) remain unchanged

Answer

Answer: (b) first increase and then decrease to the original value

Question 18.
The maximum velocity for particle in SHM is 0.16 m/s and maximum acceleration is 0.64 m/s2. The amplitude is
(a) 4 × 10-2 m
(b) 4 × 10-1 m
(c) 4 × 10 m
(d) 4 × 100 m

Answer

Answer: (a) 4 × 10-2 m

Question 19.
The period of a simple harmonic oscillator is 2 sec. The ratio of its maximum velocity and maximum acceleration is
(a) ∏
(b) 1/∏
(c) 2∏
(d) 4

Answer

Answer: (b) 1/∏

Question 20.
If a hole is bored along the diameter of the earth and a stone is dropped into the hole
(a) The stone reaches the centre of the earth and stops there
(b) The stone reaches the other side of the earth and stops there
(c) The stone executes simple harmonic motion about the centre of the earth
(d) The stone reaches the other side of the earth and escapes into space

Answer

Answer: (c) The stone executes simple harmonic motion about the centre of the earth

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Class 11 Physics MCQ:

MCQ Questions for Class 11 Physics Chapter 5 Laws of Motion with Answers

Laws of Motion Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 5 Laws of Motion with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Laws of Motion Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 5 MCQ With Answers

Physics Class 9 Chapter 5 MCQs On Laws of Motion

Laws Of Motion Class 11 MCQ With Answers Question 1.
The mass of a body which is equal to the ratio of the force acting on a body to the acceleration produced in the body is
(a) the gravitational mass
(b) the electromagnetic mass
(c) the internal mass
(d) the inertial mass

Answer

Answer: (d) the inertial mass

Laws Of Motion Class 11 MCQ Question 2.
A spherical ball of mass 10-6 kg hits a wall 1000 times per second normally with a velocity of 1000 m/s and rebounds with same velocity along the initial direction. The force experienced by the wall is
(a) 1 N
(b) 4 N
(c) 2 N
(d) 8 N

Answer

Answer: (c) 2 N

Class 11 Physics Chapter 5 MCQ Question 3.
The force required to produce an acceleration of 2 m/s² on a mass of 2 kg is
(a) 4 N
(b) 10 N
(c) 22 N
(d) 18 N

Answer

Answer: (a) 4 N

Laws Of Motion MCQ Class 11 Question 4.
A machine gun fires a bullet of mass 40 g with a velocity of 1200 ms-1. The man holding it can exert a maximum force on 144 N on the gum. How many bullets can he fire per second at the most?
(a) one
(b) four
(c) two
(d) three

Answer

Answer: (d) three

MCQ On Laws Of Motion Class 11 Question 5.
A passenger in a moving bus is thrown forward when the bus is suddenly stopped. This is explained
(a) by Newtons first law
(b) by Newtons second law
(c) by Newtons third law
(d) by the principle of conservation of momentum

Answer

Answer: (a) by Newtons first law

MCQ Questions For Class 11 Physics Chapter 5 Question 6.
A passenger sitting in a bus moving at uniform speed, feels pushed backward whenever the bus is accelerated forward. This type of force is called
(a) Gravitational force
(b) real force
(c) fictitious force or pseudo force
(d) frictional force

Answer

Answer: (c) fictitious force or pseudo force

MCQ Of Laws Of Motion Class 11 Question 7.
A body of mass 5 kg is travelling with a uniform velocity of 2 m/s. Its momentum is
(a) 10 kg m/s
(b) 7 kg m/s
(c) 2 .5 kg m/s
(d) 3 kg m/s

Answer

Answer: (a) 10 kg m/s

Law Of Motion Class 11 MCQ Question 8.
Inside the nucleus, two protons are held together by a force which overcomes the repulsion. This force is called
(a) gravitational force
(b) electrostatic force
(c) weak force
(d) strong force

Answer

Answer: (d) strong force

Class 11 Laws Of Motion MCQ Question 9.
A block of wood is placed on a surface. A force is applied parallel to the surface to move the body. The frictional force developed acts
(a) normal to the surface upwards
(b) normal to the surface downwards
(c) along the direction of the applied force
(d) opposite to the direction of the applied force

Answer

Answer: (d) opposite to the direction of the applied force

Class 11 Physics Chapter 5 MCQ With Answers Question 10.
A bullet of mass 25 g moving with a velocity of 200 cm/s is stopped within 5 cm of the target. The average resistance offered by the target is
(a) 1 N
(b) 2 N
(c) 3 N
(d) 4 N

Answer

Answer: (a) 1 N

MCQ Questions On Laws Of Motion Class 11 Question 11.
The mass of a body is 2 kg. It weight is
(a) 19.6 N
(b) 20 N
(c) 30 N
(d) 40 N

Answer

Answer: (a) 19.6 N

Class 11 Physics Ch 5 MCQ Question 12.
A body is sliding down a rough inclined plane which makes an angle of 30 degree with the horizontal. If the coeffcient of friction is 0.26, the acceleration in m/s² is
(a) 1.95
(b) 2.78
(c) 3.47
(d) 4.6

Answer

Answer: (b) 2.78

Ch 5 Physics Class 11 MCQ Question 13.
A gun of mass 1000 kg fires a projectile of mass 1 kg with a horizontal velocity of 100 m/s. The velocity of recoil of the gun in the horizontal direction is
(a) 5 m/s
(b) 0.1 m/s
(c) 15 m/s
(d) 20 m/s

Answer

Answer: (b) 0.1 m/s

Chapter 5 Physics Class 11 MCQs Question 14.
A block of wood is placed on a surface. A force is applied parallel to the surface to move the body. The frictional force developed acts
(a) normal to the surface upwards
(b) normal to the surface downwards
(c) along the direction of the applied force
(d) opposite to the direction of the applied force

Answer

Answer: (d) opposite to the direction of the applied force

Class 11 Physics Laws Of Motion MCQ With Answers Question 15.
A block of mass 2 kg rests on a rough inclined plane making an angle of 30 degree with the horizontal. The coefficient of static friction between he block and the plane is 0.7. The frictional force on the block is
(a) 9.8 N
(b) 0.7 × 9.8 × √3 N
(c) 9.8 × √3 N
(d) 0.7 × 9.8 N

Answer

Answer: (d) 0.7 × 9.8 N

MCQs On Laws Of Motion Class 11 Question 16.
A particle of mass 0.3 kg is subjected to a force F = -kx with k = 15 N/m. What will be its initial acceleration if it is released from a point 20 cm away from the origin?
(a) 15 m/s²
(b) 3 m/s²
(c) 10 m/s²
(d) 5 m/s²

Answer

Answer: (c) 10 m/s²

Laws Of Motion Class 11 MCQs Question 17.
Two bodies of masses 4 kg and 5 kg are acted upon by the same force. If the acceleration of lighter body is 2 m/s², the acceleration of heavier body is
(a) 1 m/s²
(b) 1.2 m/s²
(c) 1.6 m/s²
(d) 1.8 m/s²

Answer

Answer: (c) 1.6 m/s²

MCQ On Laws Of Motion Class 11 Pdf Question 18.
Out of the basic forces , gravitational force
(a) ranks first in strength
(b) ranks second in strength
(c) ranks third in strength
(d) ranks fourth in strength

Answer

Answer: (d) ranks fourth in strength

Question 19.
The frame of reference attached to a satellite of the earth is
(a) an inertial frame
(b) an absolute frame at rest with respect to the stars
(c) a non – inertial frame
(d) a gravitational frame

Answer

Answer: (c) a non – inertial frame

Question 20.
A block of mass M is placed on a flat surface. A force is applied to move it parallel to the surface. The frictional force f developed is proportional to the
(a) square of the mass of the body
(b) mass of the body
(c) reciprocal of the mass of the body
(d) reciprocal of the square of the body

Answer

Answer: (b) mass of the body

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Class 11 Physics MCQ:

MCQ Questions for Class 11 Physics Chapter 8 Gravitation with Answers

Gravitation Class 11 MCQ Online Test With Answers Questions

Check the below NCERT MCQ Questions for Class 11 Physics Chapter 8 Gravitation with Answers Pdf free download. MCQ Questions for Class 11 Physics with Answers were prepared based on the latest exam pattern. We have provided Gravitation Class 11 Physics MCQs Questions with Answers to help students understand the concept very well.

Class 9 Physics Chapter 8 MCQ With Answers

Physics Class 9 Chapter 8 MCQs On Gravitation

Gravitation Class 11 MCQ Question 1.
The radius of the earth is 6400 km and g = 10 m/s². In order that a body of 5 kg weighs zero at the equator, the angular speed of the earth is
(a) 1/80 rad /s
(b) 1/400 rad /s
(c) 1/800 rad /s
(d) 1/1600 rad /s

Answer

Answer: (c) 1/800 rad /s

Gravitation MCQ Class 11 Question 2.
A body weighs 500 N on the surface of the earth. How much would it weight half way below the surface of the earth?
(a) 1000 N
(b) 500 N
(c) 250 N
(d) 125 N

Answer

Answer: (c) 250 N

MCQ Questions On Gravitation For Class 11 Question 3.
The time – period of a satellite of earth is 5 hours. If the separation between the earth and the satellite is increased to 4 times the previous value, the new time – period will become
(a) 10 hours
(b) 20 hours
(c) 40 hours
(d) 80 hours

Answer

Answer: (c) 40 hours

Class 11 Gravitation MCQ Question 4.
A missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential energy is
(a) Positive
(b) Negative
(c) Zero
(d) may be positive or negative

Answer

Answer: (b) Negative

MCQ On Gravitation Class 11 Question 5.
What would be the duration of the year if the distance between the earth and the sun gets doubled?
(a) 1032 days
(b) 129 days
(c) 365 days
(d) 730 days

Answer

Answer: (a) 1032 days

MCQ Of Gravitation Class 11 Question 6.
If a body of mass m is taken out from a point below the surface of earth equal to half the radius of earth, R, to a height R above the earths surface, then work done on it will be
(a) (5/6) mgR
(b) (6/7) mgR
(c) (7/8) mgR
(d) (8/9) mgR

Answer

Answer: (c) (7/8) mgR

Class 11 Physics Chapter 8 MCQ Question 7.
A artificial satellite moving in a circular orbit around the earth has a total (kinetic + potential) energy E0. Its potential energy is
(a) 2E0
(b) E0
(c) 1.5 E0
(d) -E0

Answer

Answer: (a) 2E0

Class 11 Physics Gravitation MCQ Question 8.
A body is projected vertically from the surface of the earth of radius R with velocity equal to half of the escape velocity. The maximum height reached by the body is
(a) R
(b) R/2
(c) R/3
(d) R/4

Answer

Answer: (c) R/3

MCQ Questions For Class 11 Physics Chapter 8 Question 9.
The escape velocity for a body projected vertically upwards from the surface of the earth is 11 km/s. If the body is projected at an angle of 450 with the vertical, the escape velocity will be
(a) 11/√2 km/s
(b) 11√2 km/s
(c) 2 km/s
(d) 11 km/s

Answer

Answer: (d) 11 km/s

MCQ Questions On Gravitation For Class 11 With Solutions Question 10.
There is no atmosphere on the moon because
(a) it is closer to the earth
(b) it revolves round the earth
(c) it gets light from the sun
(d) the escape velocity of gas molecules is less than their root mean square velocity here

Answer

Answer: (d) the escape velocity of gas molecules is less than their root mean square velocity here

Gravitation MCQs With Answers Pdf Class 11 Question 11.
The value of g at a particular point is 9.8 m/sec² suppose the earth suddenly shrink uniformly to half its present size without losing any mass. The value of g at the same point (assuming that the distance of the point from the centre of the earth does not shrink) will become
(a) 9.8 m/sec²
(b) 4.9 m/sec²
(c) 19.6 m/sec²
(d) 2.45 m/sec²

Answer

Answer: (a) 9.8 m/sec²

MCQs On Gravitation Class 11 Question 12.
A missile is launched with a velocity less than the escape velocity. The sum of its kinetic and potential energy is
(a) Positive
(b) Negative
(c) Zero
(d) may be positive or negative

Answer

Answer: (b) Negative

MCQ Gravitation Class 11 Question 13.
If the radius of the earth were to be raise by 1% its mass remaining the same, the acceleration due to gravity on the surface of the earth will
(a) increase by 1%
(b) decrease by 2%
(c) decrease by 1%
(d) increase by 2%

Answer

Answer: (d) increase by 2%

MCQ On Gravitation For Class 11 Pdf Question 14.
A body is projected vertically from the surface of the earth of radius R with velocity equal to half of the escape velocity. The maximum height reached by the body is
(a) R
(b) R/2
(c) R/3
(d) R/4

Answer

Answer: (c) R/3

Class 11 Physics Ch 8 MCQ Question 15.
The escape velocity of projection from the earth is approximately (R = 6400 km)
(a) 7 km/sec
(b) 112 km/sec
(c) 12.2 km/sec
(d) 1.1 km/sec

Answer

Answer: (c) 12.2 km/sec

MCQ Of Chapter Gravitation Class 11 Question 16.
Who among the following first gave the experimental velocity of G?
(a) Cavendish
(b) Copernicus
(c) Brook Taylor
(d) none of these

Answer

Answer: (a) Cavendish

Gravitation Class 11 MCQs Question 17.
A satellite S is move in an elliptical orbit around the earth. The mass of the satellite is very small compared to the mass of the earth .
(a) The acceleration of S is always directed towards the centre of the earth.
(b) The angular momentum of S about the centre of the earth changes in direction, but its magnitude remains constant.
(c) The total mechanical energy of S varies periodically with time.
(d) The linear momentum of S remains constant in magnitude.

Answer

Answer: (a) The acceleration of S is always directed towards the centre of the earth.

Ch 8 Physics Class 11 MCQ Question 18.
The mean radius of the earth is R, its angular speed on its own axis is w and the acceleration due to gravity at earths surface is g. The cube of the radius of the orbit of a geo-stationary satellite will be
(a) r²g / w
(b) R²w²/ g
(c) RG w²
(d) R²g / w²

Answer

Answer: (d) R²g / w²

Chapter 8 Physics Class 11 MCQs Question 19.
If the distance between the earth and the sun were half its present value, the number of day in a year would have been
(a) 64.5
(b) 129
(c) 182.5
(d) 730

Answer

Answer: (b) 129

Gravitation Class 11 MCQ Questions Question 20.
The masses of two planets are in the ratio 1 : 2. Their radii are in the ratio 1 : 2. The acceleration due to gravity on the planets are in the ratio.
(a) 1 : 2
(b) 2 : 1
(c) 3 : 5
(d) 5 : 3

Answer

Answer: (a) 1 : 2

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Class 11 Physics MCQ:

MCQ Questions for Class 9 Science Chapter 10 Gravitation with Answers

Gravitation Class 9 MCQ Online Test With Answers Questions

Check the below Online Education NCERT MCQ Questions for Class 9 Science Chapter 10 Gravitation with Answers Pdf free download. MCQ Questions for Class 9 Science with Answers were prepared based on the latest exam pattern. We have Provided Gravitation Class 9 Science MCQs Questions with Answers to help students understand the concept very well. https://ncertmcq.com/mcq-questions-for-class-9-science-with-answers/

You can refer to NCERT Solutions for Class 9 Science Chapter 10 Gravitation to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Class 9 Science Physics Chapter 10 MCQ With Answers

Physics Class 9 Chapter 10 MCQs On Gravitation

Gravitation Class 9 MCQ Chapter 10  Question 1.
Two objects of different masses falling freely near the surface of the moon would
(a) have same velocities at any instant
(b) have different acceleration
(c) experience forces of same magnitude
(d) undergo a change in their inertia

Answer

Answer: (a) have same velocities at any instant

Gravitation MCQ Class 9 Chapter 10 Question 2.
The value of acceleration due to gravity
(a) is same on equator and poles
(b) is least on poles
(c) is least on equator
(d) increases from pole to equator

Answer

Answer: (c) is least on equator

Class 9 Gravitation MCQ Chapter 10  Question 3.
The gravitational force between two objects is F. If masses of both objects are halved without changing the distance between them, then the gravitational force would become
(a) F/4
(b) F/2
(c) F
(d) 2F

Answer

Answer: (a) F/4

MCQ On Gravitation Class 9 Chapter 10 Question 4.
A boy is whirling a stone tied to a string in a horizontal circular path. If the string breaks, the stone
(a) will continue to move in the circular path
(b) will move along a straight line towards the centreof the circular path
(c) will move along a straight line tangential to the circular path
(d) will move along a straight line perpendicular to the circular path away from the boy

Answer

Answer: (c) will move along a straight line tangential to the circular path

MCQ Of Gravitation Class 9 Chapter 10 Question 5.
An object is put one by one in three liquids having different densities. The object floats with \(\frac{1}{9}\), \(\frac{2}{11}\) and \(\frac{3}{7}\) parts of their volumes outside the liquid surface in liquids of densities d1, d2 and d3respectively. Which of the following statement is correct?
(a) d1 > d2 > d3
(b) d1 > d2 < d3
(c) d1 < d2 > d3
(d) d1 < d2 < d3

Answer

Answer: (d) d1 < d2 < d3

Gravitation MCQ Chapter 10 Question 6.
In the relation F = GM mld2, the quantity G
(a) depends on the value ofg at the place of observation
(b) is used only when the Earth is one of the two masses
(c) is greatest at the surface of the Earth
(d) is universal constant of nature

Answer

Answer: (d) is universal constant of nature

Class 9 Science Chapter 10 MCQ Question 7.
Law of gravitation gives the gravitational force between
(a) the Earth and a point mass only
(b) the Earth and Sun only
(c) any two bodies having some mass
(d) two charged bodies only

Answer

Answer: (c) any two bodies having some mass

Law of gravitation gives the gravitational force between

MCQ Questions On Gravitation For Class 9 Chapter 10 Question 8.
The value of quantity G in the law of gravitation
(a) depends on mass of Earth only
(b) depends on radius of Earth only
(c) depends on both mass and radius of Earth
(d) is independent of mass and radius of the Earth

Answer

Answer: (d) is independent of mass and radius of the Earth

Gravitation Class 9 MCQ With Answers Chapter 10  Question 9.
Two particles are placed at some distance. If the mass of each of the two particles is doubled, keeping the distance between them unchanged, the value of gravitational force between them will be
(a) \(\frac{1}{4}\) times
(b) 4 times
(c) \(\frac{1}{2}\) times
(d) unchanged

Answer

Answer: (b) 4 times

MCQ Gravitation Class 9 Chapter 10 Question 10.
The atmosphere is held to the Earth by
(a) gravity
(b) wind
(c) clouds
(d) Earth’s magnetic field

Answer

Answer: (a) gravity

Class 9 Physics Gravitation MCQ Chapter 10 Question 11.
The force of attraction between two unit point masses separated by a unit distance is called
(a) gravitational potential
(b) acceleration due to gravity
(c) gravitational field
(d) universal gravitational constant

Answer

Answer: (d) universal gravitational constant

Gravitation Class 9 MCQ Questions And Answers Chapter 10 Question 12.
The weight of an object at the centre of the Earth of radius R is (NCERT Exemplar)
(a) zero
(b) infinite
(c) R times the weight at the surface of the Earth
(d) 1/R2 times the weight at surface of the Earth

Answer

Answer: (a) zero

Class 9 Science Gravitation MCQ Chapter 10 Question 13.
An object weighs 10 N in air. When immersed fully in water, it weighs only 8 N. The weight of the liquid displaced by the object will be
(a) 2 N
(b) 8 N
(c) 10 N
(d) 12 N

Answer

Answer: (a) 2 N

Class 9 Science Ch 10 MCQ Question 14.
A girl stands on a box having 60 cm length, 40 cm breadth and 20 cm width in three ways. In which of the following cases, pressure exerted by the box will be
(a) maximum when length and breadth form the base
(b) maximum when breadth and width form the base
(c) maximum when width and length form the base
(d) the same in all the above three cases

Answer

Answer: (b) maximum when breadth and width form the base

MCQs On Gravitation Class 9 Chapter 10 Question 15.
An apple falls from a tree because of gravitational attractionbetween the Earth and the apple. If F1 is the magnitude of force exerted by the Earth on the apple and F2 is the magnitude of force exerted by the apple on the Earth, then
(a) F1 is very much greater than F2
(b) F2 is very much greater than F1
(c) F1 is only a little greater than F2
(d) F1 and F1 are equal

Answer

Answer: (d) F1 and F1 are equal

Gravitation Class 9 MCQs Chapter 10 Question 16.
The acceleration due to gravity on the Earth depends upon the
(a) mass of the body
(b) mass of the Earth
(c) shape and size of the body
(d) volume of the body

Answer

Answer: (b) mass of the Earth

Question 17.
When a mango falls from a mango tree then
(a) only the Earth attracts the mango.
(b) only the mango attracts the Earth.
(c) both the mango and the Earth attract each other.
(d) both the mango and the Earth repel each other.

Answer

Answer: (c) both the mango and the Earth attract each other.

Question 18.
When a ship floats in sea water
(a) The weight of water displaced is greater than the weight of ship
(b) The weight of water displaced is less than the weight of the ship
(c) The weight of water displaced is equal to the weight of the ship
(d) It displaces no water.

Answer

Answer: (c) The weight of water displaced is equal to the weight of the ship

Question 19.
The SI unit of pressure is
(a) Nm2
(b) N/m
(c) N/m2
(d) N2/m2

Answer

Answer: (c) N/m2

Question 20.
If the gravitational attraction of the Earth suddenly disappears, which of the following statements will be true?
(a) The weight of body will become zero but the mass will remain same.
(b) The weight of a body will remain same but the mass will become zero.
(c) Both mass and weight become zero.
(d) Neither mass nor weight becomes zero.

Answer

Answer: (a) The weight of body will become zero but the mass will remain same.

If the gravitational attraction of the Earth suddenly disappears, which of the following statements will be true?

Fill in the blanks

1. Gravitational force is always ………….. in nature.

Answer

Answer: attractive

2. …………… of a body is the quantity of matter contained in it.

Answer

Answer: Mass

3. SI unit of mass is …………….

Answer

Answer: kilogram

4. Weight of an object is the force with which it is attracted towards the ………………

Answer

Answer: Earth

5. The acceleration due to gravity of moon is …………… of that of the Earth.

Answer

Answer: one sixth

6. Every fluid exerts an …………….. force on a body immersed in it. This force is called ……………

Answer

Answer: upward, buoyant

7. Density of a substance is defined as mass per unit ……………..

Answer

Answer: volume

8. The force acting on an object …………… to the surface is called thrust.

Answer

Answer: perpendicular

9. The relative density of a substance is the ratio of its density to that of ……………..

Answer

Answer: water

Match the following columns

Column A Column B
(a) SI unit of Weight (i) Kilogram
(b) mass (ii) F = \(\frac{Gm_1m_2}{r^2}\)
(c) Weight (iii) mg
(d) Buoyant force (iv) newton
(e) Relative density (v) Ratio of density of the substance to that of water
(f) SI unit of mass (vi) Quantity of matter contained in a body
(g) Gravitational force between two bodies (expression) (vii) Force acting on body due to Earth’s attraction
(viii) Weight of an object (expression) (viii) Upward force on a body placed in a fluid
Answer

Answer:

Column A Column B
(a) SI unit of Weight (iv) newton
(b) mass (vi) Quantity of matter contained in a body
(c) Weight (vii) Force acting on body due to Earth’s attraction
(d) Buoyant force (viii) Upward force on a body placed in a fluid
(e) Relative density (v) Ratio of density of the substance to that of water
(f) SI unit of mass (i) Kilogram
(g) Gravitational force between two bodies (expression) (ii) \(\frac{Gm_1m_2}{r^2}\)
(viii) Weight of an object (expression) (iii) mg

Complete the crossword given below

MCQ Questions for Class 9 Science Chapter 10 Gravitation with Answers
Across
3. Quantity of matter contained in a body
4. The property due to which a body immersed in fluid experiences upward force.
5. Acceleration due to gravity of moon is how much time that of Earth
7. Whenever objects fall towards the Earth under gravitational force alone, we say that objects are in
8. The force with which a body is attracted towards the Earth
10. Force of gravitation due to Earth is called
11. Nature of gravitational force is always
Down
1. Force between two bodies due to their masses
2. Thrust on unit area
6. Mass per unit volume
9. SI unit of pressure

Answer

Answer:
Across:
3. Mass
4. Buoyancy
5. One sixth
7. Free fall
8. Weight
10. Gravity
11. Attractive

Down:
1. Gravitational force
2. Pressure
6. Density
9. Pascal

We hope the given NCERT MCQ Questions for Class 9 Science Chapter 10 Gravitation with Answers Pdf free download will help you. If you have any queries regarding Gravitation CBSE Class 9 Science MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soon.

Class 9 Science Physics MCQ: