Gravitation UPSC Questions

Physics

Gravitation MCQ Questions


1.
What holds the earth's atmosphere?
A.
Gravity
B.
Wind
C.
Clouds
D.
Earth's magnetic field
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ANSWER :
A. Gravity
2.

The value of acceleration due to gravity is

A.

18.8m/s2

B.

9.8m/s2

C.

12m/s2

D.

4m/s2

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ANSWER :

B. 9.8m/s2

3.
Which of the following is true when a apple falls from a apple tree?
A.
Only the Earth attracts the apple
B.
Only the apple attracts the earth
C.
Both apple and the earth attracts each other
D.
Both apple and the earth repel each other
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ANSWER :
C. Both apple and the earth attracts each other
4.
The SI unit of weight is
A.
Pascal
B.
Joule
C.
Watt
D.
Newton
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ANSWER :
D. Newton
5.

The weight of an object on the moon surface is

A.

1/5th of the weight on Earth

B.

1/3rd of the weight on Earth

C.

1/2nd of the weight on Earth

D.

1/6th of the weight on Earth

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ANSWER :

D. 1/6th of the weight on Earth

6.
The upward force exerted by an object wholly or partly immersed in a liquid is known as
A.
Gravitational force
B.
Buoyant force
C.
Electrostatic force
D.
Magnetic force
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ANSWER :
B. Buoyant force