9928038
Descrição
Quiz por Tracy Rains, atualizado more than 1 year ago
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Criado por Tracy Rains
quase 7 anos atrás
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Questão 1
Questão
What is an electromagnet?
Responda
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A magnet created by the flow of electricity through metal.
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A magnet made out of long wires
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An electrical circuit that is built with a magnet as the conductor.
Questão 2
Questão
An electromagnet can be switched on and off.
Responda
- True
- False
Questão 3
Questão
[blank_start]Solenoids[blank_end] are powerful electromagnets made from wire being wrapped around a nail and connected to a battery.
Responda
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Solenoids
Questão 4
Questão
What three things is an electromagnet made with?
Responda
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Magnet, light bulb, wire
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Magnet, wire, switch
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Wire, nail, battery
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Wire, battery, light bulb
Questão 5
Questão
Electromagnets can be found in doorbells.
Responda
- True
- False
Questão 6
Questão
The difference between a magnet and an electromagnet is that you can increase or decrease the power of the electromagnet by [blank_start]controlling[blank_end] the [blank_start]supply[blank_end] of electricity.
Responda
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controlling
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supply
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