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.
Consider the following:
1. Electromagnetic radiation
2. Geothermal energy
3. Gravitational force
4. Plate movements
5. Rotation of the earth
6. Revolution of the earth
Which of the above are responsible for bringing dynamic changes on the surface of the earth?
UPSC - 2013
A.
1, 2, 3 and 4 only
B.
1, 3, 5 and 6 only
C.
2, 4, 5 and 6 only
D.
1, 2, 3, 4, 5 and 6
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ANSWER :
D. 1, 2, 3, 4, 5 and 6
3.
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
4.
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
5.
The SI unit of weight is
A.
Pascal
B.
Joule
C.
Watt
D.
Newton
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ANSWER :
D. Newton
6.
Consider the following space missions:
I. Axiom-4
II. SpaDeX
III. Gaganyaan
How many of the space missions given above encourage and support microgravity research?
UPSC - 2025
A.
Only one
B.
Only two
C.
All three
D.
None
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ANSWER :
C. All three