_____ A boy helps a teacher by lifting a 200-N box of books 1.5 meters from the floor to the desktop.

_____ The same boy lifts a 500-N box of books the same height.

The first situation would require less work because the force needed to lift a 200-N box is less than that needed for a 500-N box. Work is calculated by the formula Work = Force x Distance. Since the force in the second situation is greater, more work would be required to lift the 500-N box compared to the 200-N box.