Gravitational Potential Energy and Gravitational Potential NEET Questions

Physics - Gravitation

Gravitational Potential Energy and Gravitational Potential MCQ Questions


7.
A satellite of mass 1000 kg revolves in a circular orbit around the Earth with a constant speed of 100 m/s. The total mechanical energy of the satellite is:
A.
-0.5 MJ
B.
-25 MJ
C.
-5 MJ
D.
-2.5 MJ
😑 View Answer Rough Work Error
ANSWER :
C. -5 MJ
8.
The gravitational potential energy of a body of mass m at a height h above the Earth's surface is approximately:
A.
mgh
B.
mgh/2
C.
mgh/R
D.
2mgh/R
😑 View Answer Rough Work Error
ANSWER :
A. mgh
9.
The gravitational potential at a point inside a uniform spherical shell is:
A.
Zero
B.
Increases with distance
C.
Decreases with distance
D.
Constant
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ANSWER :
D. Constant
10.
The gravitational potential at a distance r from a mass M is:
A.
GM/r
B.
-GM/r
C.
−GM/r²
D.
GMm/r
😑 View Answer Rough Work Error
ANSWER :
B. -GM/r
11.
If the separation between two masses is doubled, the gravitational potential energy of the system will:
A.
Halved
B.
Doubled
C.
Remains same
D.
Becomes one-fourth
😑 View Answer Rough Work Error
ANSWER :
A. Halved
12.
A mass m is moved in a gravitational field from point A to B. The work done by the gravitational force is:
A.
Always positive
B.
Always negative
C.
Always zero
D.
Depends on m and on the potential difference between A and B
😑 View Answer Rough Work Error
ANSWER :
D. Depends on m and on the potential difference between A and B