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 14 of 14
- A. Double
- B. Half
- C. Zero
- D. Negative
Explanation: When an object is in free fall, such as a pilot diving down with an acceleration equal to gravity (9.8 m/s-2), it experiences…
Correct answer: Zero- A. g=0
- B. It is falling freely
- C. No force acts on it
- D. It is far away from the earth
Explanation: No force acts on it: This option is incorrect. There is a force acting on the object due to gravity, but it is balanced by the centripetal…
Correct answer: No force acts on it- A. 343N
- B. 1372 N
- C. 686 N
- D. Zero
Explanation: The net force is equal to the sum of the gravitational force and the force due to acceleration:Net force = Gravitational force + Force due…
Correct answer: Zero264. The weight of a pilot when diving down in a jet plane with an acceleration of 9.8m/s2 will become
- A. Double
- B. Half
- C. Negative
- D. Zero
Explanation: Weight of pilot = Original Weight + Apparent Weight = mg+(-ma) a= 9.8ms-2 So weight of pilot = 0
Correct answer: Zero- A. g = 0
- B. No force acts on it
- C. Its motion is free fall
- D. It is far away from the earth
Explanation: The correct answer is that an object in a satellite orbiting around the Earth is weightless because its motion is in free fall.
Correct answer: Its motion is free fall