Choose the correct alternative.

 1 Acceleration due to gravity increases with increasing altitude. 2 Acceleration due to gravity remains unchanged with increasing altitude. 3 Acceleration due to gravity increases with increasing depth (assume the earth to be a sphere of uniform density). 4 Acceleration due to gravity decreases with increasing depth (assume the earth to be a sphere of uniform density).

Subtopic: Â Acceleration due to Gravity |
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Acceleration due to gravity is:

 1 independent of the mass of the earth. 2 independent of the mass of the body. 3 independent of both the mass of the earth and the body. 4 dependent on both the mass of the earth and the body.
Subtopic: Â Acceleration due to Gravity |
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Which of the following symptoms is not likely to afflict an astronaut in space?

1. swollen feet
2. swollen face
4. orientational problem

Subtopic: Â Acceleration due to Gravity |
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A body weights $$63$$ N on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to half the radius of the earth?
1. $$98~\text N$$
2. $$35~\text N$$
3. $$63~\text N$$
4. $$28~\text N$$

Subtopic: Â Acceleration due to Gravity |
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Assuming the earth to be a sphere of uniform mass density, how much would a body weigh halfway down to the centre of the earth if it weighed $$250$$ N on the surface?

 1 $$250$$ N 2 $$125$$ N 3 $$175$$ N 4 $$145$$ N
Subtopic: Â Acceleration due to Gravity |
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