1. A family uses the television in watching their favorite drama. What energy transformation occurred? A. electrical energy to sound energy to light energy B. electrical energy to chemical energy to sound energy c. mechanical energy to sound energy to chemical energy D. chemical energy to electrical energy to sound energy 2. What energy transformation occurred in using a battery -operated radio? A. electrical energy to chemical energy B. chemical energy to sound energy C. electrical energy to sound energy D. mechanical energy to sound energy Your brother played outside but he left the electric fan and the fluorescent lights in your living room on, what will you do? 3. A. Never mind the electric fan and light bulbs. B. Ask your mother to turn off the fan and light bulbs. C. Turn off the electric fan and the light bulbs. Call your brother and scold him.
