1. The energy acquired by a body because of its motion is called potential energy.   True   False   2. If an engine does 609 J of work in 7 seconds, its average power is   602 W   87 W   4263 W   616 W   Hint Half-n-half Clue   3. A carton is pulled along the ground for a distance of 6 m. If the average frictional force is 59 N, then the work done is   59 J   354 J   6 J   2124 J   Half-n-half Clue   4. When a current is supplied by a battery, _______ energy is converted to electrical energy.   nuclear   mechanical   chemical   Half-n-half Clue   5. Kinetic energy of a body in motion equals the product of half its mass and the square of its _______   velocity   acceleration   distance   Half-n-half Clue   6. Power is the rate of doing work.   True   False   7. By definition, work is done when a _______ moves through a distance.   mass   pressure   force   Half-n-half Clue