11. What kind of energy is produce by hitting two objects together?
A. electrical
B. sound
C. mechanical D. heat
12. When electrons move from one atom to another, what is produce?
A. light
B. electricity C. sound
D. thermal
13. What kind of energy produced through constant movement of molecules?
A. Light
B. kinetic
C. Thermal
D. electricity
14. What kind of energy transformation occurs when you switch on the television?
A. electrical-sound-light
C. sound-electrical-light
B. light-electrical-sound
D. electrical thermal sound
15. What kind of energy transformation occurs when you switch on the bread toaster?
A. electrical energy-sound energy
C. electrical-thermal energy-light
B. electrical-heat
D. thermal-electrical
16. Which is a good conductor of electricity?
A. metal
B. plastic
D. glass
C. paper​