I. Choose the right answer!
1. Lamp produces ….. energy. 11. Flashlight produces …..energy.
a. light c. sound a. light c. sound
b. heat b. heat
2. Stove produces…..energy. 12. Harmonica produces …..energy.
a. light c. sound a. light c. sound
b. heat b. heat
3. We can move, because we have….. 13. Sun is the source of….. energy.
a. food c. energy a. light and heat c. heat and sound
b. water b. light and sound
4. Piano produces …..energy 14. Iron produces …..energy
a. light c. sound a. light c. sound
b. heat b. heat
5. Television needs ……..energy. 15. Computer needs ……..energy.
a. light c. sound a. light c. sound
b. electricity b. electricity
6. Heat and light energies come from…. 16. Sound energy comes from….
a. stove c. moon a. stove c. piano
b. sun b. sun
7. Fire is one of the …..energy. 17. Gas is one of the …..energy.
a. electricity c. sound a. electricity c. sound
b. heat b. heat
8. We need energy to move from …. 18. We need ……..energy to dry the clothes.
a. foods c. electricity a. heat c. sound
b. sun b. light
9. Radio needs …… energy. 19. Fan needs …… energy.
a. electricity c. sound a. electricity c. sound
b. heat b. heat
10. Guitar produces ….. energy. 20. Candle is one of the ….. energy.
a. electricity c. sound a. electricity c. sound
b. heat b. light
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