Free Gravitation MCQs with Answers
265 Gravitation MCQs from Physics, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
Newton’s law of universal gravitation relates the force between masses to their masses and separation, while gravitational field strength explains weight and orbital motion. The topic covers satellite velocity and period, escape ideas, weightlessness in free fall, and artificial gravity, which differs from ordinary gravitational attraction.
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265 questions · page 7 of 14
- A. Terminal velocity
- B. Escape velocity
- C. Angular velocity
- D. Orbital velocity
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Correct answer: Escape velocity- A. Small bodies only
- B. Planets only
- C. Both small and big bodies
- D. Only valid for solar system
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Correct answer: Both small and big bodies- A. The elevator is at rest
- B. The elevator moves up with an acceleration 'a'
- C. The elevator moves down with an acceleration 'a'
- D. None of these
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Correct answer: The elevator is at rest124. Inertial mass is:
- A. Equal to gravitational mass
- B. Less than gravitational mass
- C. More than gravitational mass
- D. Not related to gravitational mass at ordinary speed
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Correct answer: Equal to gravitational mass- A. g
- B. 2g
- C. g/2
- D. g/4
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Correct answer: g/2- A. Becomes five times
- B. Becomes half
- C. Becomes doubled
- D. Remains unchanged
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Correct answer: Remains unchanged- A. Is smaller than the force with which moon attracts the earth
- B. Is greater than the force with which moon attracts the earth
- C. Is equal to the force with which moon attracts the earth
- D. The fact is yet to be established
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Correct answer: Is equal to the force with which moon attracts the earth- A. The earth is zero
- B. The moon is zero
- C. The moon and earth is equal and opposite
- D. Both the moon and earth is zero
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Correct answer: The moon and earth is equal and opposite- A. Gravitational pull of the sun on the satellite
- B. Gravitational pull of the earth on the satellite
- C. The rocket engine attached to the satellite
- D. None of the above
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Correct answer: Gravitational pull of the earth on the satellite- A. Double
- B. Half of the original value
- C. One third of the original value
- D. One fourth of the original value
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Correct answer: One fourth of the original value- A. 3 times the density of water
- B. 4 times the density of water
- C. 5.5 times the density of water
- D. Equal times the density of water
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Correct answer: 5.5 times the density of water- A. 1.6 x 10^-7 N
- B. 3.34 x 10^-8 N
- C. 1.67 x 10^-5 N
- D. 3.34 x 10^-5N
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Correct answer: 1.67 x 10^-5 N- A. g' = g
- B. g' = g/4
- C. g' = g/9
- D. g' = g/2
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Correct answer: g' = g/4- A. Increased
- B. Decreased
- C. Reduced to zero
- D. Remained constant
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Correct answer: Increased- A. Increased
- B. Decreased
- C. Remained constant
- D. Reduced to zero
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Correct answer: Decreased- A. 9.8 N
- B. 9.8 Dyne
- C. 980 N
- D. 98 N
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Correct answer: 9.8 N- A. 1600 miles
- B. 200 miles
- C. 1000 miles
- D. 400 miles
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Correct answer: 1600 miles- A. An inertial frame of reference
- B. Non-inertial frame
- C. Neither inertial nor non-inertial
- D. Both inertial and non-inertial
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Correct answer: Non-inertial frame- A. 9.8 N
- B. 19.6 N
- C. 129.4 N
- D. 39.2 N
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Correct answer: 39.2 N- A. 20 N
- B. 196 N
- C. 19.6 N
- D. 1960 N
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Correct answer: 196 N