15. What is the best example of a device that converts electrical energy to light to sound? A. a flashlight B. a TV set C. alarm clock D. ceiling fan 16. What two forms of energy are shown in a closing car door? A. heat energy- sound energy C. electrical energy-sound energy B. light energy-sound energy D. mechanical energy-sound energy 17. The following situations demonstrate sound energy transformation, EXCEPT A. boiling of water C. rusting of iron B. tearing of paper D. clapping of hands 18. Which of the following situations show sound energy transformation? A. crumpling of paper B. roasting a chicken C. ironing of clothes D. sitting on the bench 19. Which of the following statements is NOT true? A. Energy can be transformed. B. Energy is never really used up. C. Energy cannot be created or destroyed. D. Energy can be created but not destroyed. 20. Henry throws a ball against a fence. What form of energy does the ball produce when it strikes the fence? A. heat energy B. light energy C. electrical energy D. sound energy
