Universal Law of Gravitation NEET Questions

Physics - Gravitation

Universal Law of Gravitation MCQ Questions


7.
Which of the following is a correct expression for Newton’s Law of Gravitation?
A.
F = G(m1m2)/r²
B.
F = G(m1m2)/r
C.
F = G(m1+m2)/r²
D.
F = G(m1m2)/r³
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ANSWER :
A. F = G(m1m2)/r²
8.
A satellite of mass m is orbiting Earth in a circular orbit of radius 2R. The total energy of the satellite in terms of gravitational potential energy U is:

NEET - 2024

A.
U/2
B.
U
C.
U/4
D.
U/3
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ANSWER :
C. U/4
9.
A planet has a mass 4 times that of Earth and a radius twice that of Earth. The acceleration due to gravity on the planet will be:

NEET - 2018

A.
g/4
B.
g
C.
g/2
D.
4g
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ANSWER :
B. g
10.
If the mass of an object is doubled while the distance remains the same, the gravitational force:
A.
Becomes double
B.
Remains the same
C.
Becomes half
D.
Becomes four times
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ANSWER :
A. Becomes double
11.
The acceleration due to gravity on the Moon is about 1/6th of that on Earth because:
A.
Moon has less mass
B.
Moon has a larger radius
C.
Moon rotates faster
D.
Moon is farther from the Sun
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ANSWER :
A. Moon has less mass
12.
What is the correct SI unit of the gravitational constant G?
A.
N·m²/kg²
B.
N/kg
C.
J/kg
D.
m/s²
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ANSWER :
A. N·m²/kg²