HOTS Questions for Class 9 Science Chapter 10 Gravitation
These Solutions are part of HOTS Questions for Class 9 Science. Here we have given HOTS Questions for Class 9 Science Chapter 10 Gravitation
Gravitational force between two masses m1 and m2 separated by a distance r in air is F. What is the gravitational force between these masses separated by the same distance r in vacuum ?
Gravitational force between two masses does not depend on the medium in which they are placed. Therefore, gravitational force between the masses in vacuum will also be F.
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Can a body has mass, but no weight ? Give reason for your answer. (CBSE 2015)
Mass of a body is the quantity of matter contained in the body. However, weight of body = mg. Weight of a body is zero, when value of g = 0. The value of ‘g at the centre of the earth is zero, therefore, weight of the body at the centre of the earth is zero. Thus, body can have mass but no weight at the centre of the earth.
The value of acceleration due to gravity on a planet ‘A’ is ‘g’ What will be the value of acceleration due to gravity on another planet B whose mass is same as that of the planet ‘A’ but its radius is double the radius of planet ‘A’ ?
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