Newton's law of gravitation is universal because:
Correct answer: D. All of the above
- A. It is always attractive
- B. It acts on all heavenly bodies and particles
- C. It acts on all the masses at all the distances and is not affected by the medium
- D. All of the above
Explanation
The correct answer is "All of the above" because options (a), (b), and (c) are all accurate descriptions of why Newton's law of gravitation is considered universal. The law is always attractive, it applies to all heavenly bodies and particles, and it acts on all masses at all distances, unaffected by the medium through which it operates.
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About Gravitation
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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