1. What provides energy in an electric cir-
d. battery
a. switch
b. light bulb C wire
2. This is an electrical tool that helps open
and close a circuit
a light bulb b. switch
c. insulator d wire
3. What is needed by appliances to work?
a machine
b. sun c. electricity d. air
4. The continuous flow of electrons in a cir-
cuit
a static electricity
b. continuous electricity
c. current electricity d. conduct electricity
5. Which of these could be used as a regula-
tor in a circuit?
a ballpen
c. rubber eraser
d. electric motor
b. Gas engine

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