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1 PHYSICS MCQS

The value of acceleration due to gravity is minimum on which of these planets?

  • Mars
  • Jupiter
  • Mercury
  • Neptune
Correct Answer: C. Mercury

Detailed Explanation

Acceleration due to gravity is the rate at which objects fall towards a planet due to its gravitational pull. It depends on the mass of the planet and its radius, according to the formula:


g=G⋅MR2g = \frac{G \cdot M}{R^2}g=R2GM


where GGG is the gravitational constant, MMM is the mass of the planet, and RRR is its radius.


Different planets in our solar system have different values of gravity. For example, Jupiter has a very strong gravitational pull because it is massive, while Mercury is small and light, giving it the lowest surface gravity among the planets listed.


Here’s a quick comparison:




  • Jupiter – very high gravity due to huge mass




  • Neptune – high gravity because of its large mass




  • Mars – weaker than Earth, but stronger than Mercury




  • Mercury – smallest and lightest, so gravity is minimum




Mercury’s low gravity means objects fall more slowly than on other planets. This affects the weight of objects; a person would weigh much less on Mercury than on Earth.


Understanding gravity on different planets is part of Physics and helps students learn about planetary science, space exploration, and how planets influence motion.


So the correct answer is Mercury, as it has the minimum acceleration due to gravity among the options given.

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