NEET Physics Friction MCQ Question
Which of the following statements about friction is correct?
Friction only opposes the motion of an object in contact with a surface.
Rolling friction has a different origin compared to static and sliding friction.
Friction always results in a loss of energy irrespective of the type of motion.
The coefficient of static friction is greater than the coefficient of kinetic friction for all surfaces.
Correct Answer
Detailed Explanation
Rolling friction indeed has a complex origin that differs from static and sliding friction, as surfaces in contact get momentarily deformed. This is consistent with the NCERT context that highlights the different types of friction and their characteristics.
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