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WorksheetsElectricity
Total questions: 20
Worksheet time: 1hrs 7mins
Why do electricians always wrap wires in plastic?
Plastic comes in many different colors
Plastic is a good electrical conductor
Plastic makes the wires easy to bend
Plastic is a good electrical insulator
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?
The switch produced an electric current
Closing the switch broke the circuit
Closing the switch completed the circuit
The switch did not make a difference
How can it be explained that someone's hair can stick to a balloon?
There is static electricity
There is too much dust in the air
A parallel circuit was too long
The person needs to wash his hair
If you add another bulb in parallel,_____
The bulbs get brighter
The bulbs get dimmer
The bulb brightness stays the same
All the bulbs will go out
If the top bulb goes out,
All the bulbs go out
The other bulbs get dimmer
There is no effect on the other bulbs
The other bulbs get brighter
If the middle bulb goes out, _______
The other bulb gets brighter
The other bulb goes out
The other bulb's brightness stays the same
The other bulb gets dimmer
Devices in a parallel circuit receive
equal current but different voltage
equal voltage but different current
equal voltage and equal current
different voltage and different current
