NEET Physics (general) MCQ Question
Which of the following statements about work, energy, and forces in a system of particles is correct?
The work done by a gravitational force is always positive when moving an object upwards.
The gravitational potential energy increases as an object is raised to a higher position against gravity.
Work done by friction is positive when it opposes displacement.
The change in kinetic energy of an object is independent of the work done on it by net force.
Correct Answer
Detailed Explanation
The gravitational potential energy increases as an object is raised to a height, indicating that the work done against gravity is stored as potential energy. This aligns with the statement in Chunk 2 about gravitational potential energy being negative work done by gravity.
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