11. Which of the following does NOT produce light energy?
A. car
B. phone
C. picture frame D. computer
12. What object can change electrical energy into light energy?
A. candle
B. fire
C. lamp
D. radio
13. What machine changes electrical energy into light and heat energy?
A. battery
B. light bulb
C. alarm clock
D. electric fan
14. Which type of energy is produced when the handle of a pencil sharpener tums?
A. magnetic
B. light
C. electrical
D. mechanical
15. What form of energy is stored in matches or food?.
A. Sound
B. heat
C. chemical D. electrical​