1.Listening songs from a radio. a. sound to heat b. electrical to sound c. electrical to sound d. heat to sound 2.Gathering around a campfire a. sound to light b. light to heat c. mechanical to heat d. light to sound 3.Installing solar panels at home a. light to electrical b. electrical to sound c. electrical to light d. light to mechanical 4.Speaking in a forum using a microphone a.mechanical to electrical b. electrical to mechanical c. heat to electrical d. electrical to sound 5.Turning on a night lamp to read a. electrical to light b. electrical to sound c. heat to light d. light to electrical
