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Question 30469
JEE Physics · Medium

Work, Power and Energy: JEE — Work in Circular Motion MCQ

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JEE — Work in Circular MotionMediumQuestion 30469

Question

A planet moves in an elliptical orbit around the Sun. As it moves from aphelion (farthest) to perihelion (nearest), the work done by gravity is:
  1. A
    Zero
  2. B
    Negative
  3. C
    Positive
    Correct
  4. D
    Depends on mass

Correct answer

Positive

Explanation

Moving from farther to nearer the Sun → force (gravity toward Sun) has a component along displacement → positive work by gravity → KE increases.

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