If the radius of Earth were to shrink by one percent, its mass remaining the same, the acceleration due to gravity on the Earth's surface would:
Correct answer: C. Increase
- A. Decrease
- B. Remain unchanged
- C. Increase
- D. None of these
Explanation
Option c is correct. As explained earlier, a 1% decrease in the radius leads to an increase in the gravitational acceleration at the Earth's surface.
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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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