Which best defines work in physics?, A. When a person feels tired, B. When the force causes an object to move, C. When you carry something heavy, D. When you study for an exam, Holding a heavy bag without moving is an example of work in physics., A. True, B. False, C. Maybe, D. None, A girl carries a bag while walking straight at a constant speed. What kind of work is done on the bag?, A. Positive work, B. Negative work, C. Zero work, D. No force, A boy catches a moving ball and stops it. The force applied by his hands is in the opposite direction to the ball’s motion. What kind of work is done?, A. Positive work, B. Negative work, C. Zero work, D. No Force, Why is understanding work important in daily life?, A. It helps us understand how forces affect movement., B. It makes objects heavier., C. It removes gravity., D. It stops motion completely.

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