1. A circuit has power supply, load, switch and a
A battery
B. wires
C. bulb
D. motor
2. What supplies energy in an electric circuit?
A conductor B. wire
C. light bulb D. battery
3. What needs to be done to a circuit so that the lamp lights up?
A close the switch
C. add another lamp
B. add a cell and close the circuit
D. add a motor and close the switch
+ What is the function of a power source in a circuit?
A It provides a means through which the circuit can be broken
B. It provides a steady source of electricity.
C. It opens and closes the circuit.
D. It resist the flow of electrons.
5. What might happen if wires were not protected with rubber or plastic?
A. The power source will no longer provide a flow of current.
B. We would be harmed from electric shock.
C. The circuit would be broken.
D. The current will not flow.
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Answer:
1.d
2.d
3.c
4.d
5.b
that's the answer
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