Electrical Induction

Electromagnetism is when

• magnetism causes electricity
• electricity causes magnetism
• electricity and magnetism cancel each other out
• a strong magnet creates a permanent magnet

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The voltmeter is at 0 in this image. How would you manipulate the experiment to create electricity (measured in volts)?

• Flip the magnet around so the North pole is facing out
• Move the magnet back and forth
• Take the magnet out
• Add more coils around the paper cylinder

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Electromagnetic induction is taking place in this experiment. How much electricity is being produced?

• -10 Volts
• 10 Volts
• 100 Volts
• This question cannot be answered based on this image

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How could the experimenter increase the amount of electricity being induced by this experiment?

• Increase the number of coils
• Decrease the number of coils
• Flip the magnet around
• Nothing, the amount of electricity cannot be increased

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NGSS.HS-PS2-5

How would flipping the magnet in this experiment change the current?

• The current would not change
• The current would go to the right
• There would be no current
• The current would go CRAZY

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Electromagnetic induction is change in ___________________. 

• surface area
• magnetic poles
• magnetic flux

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Voltage can be induced in a wire by

• a. moving the wire near a magnet.
• b. moving a magnet near the wire.
• c. changing the current in a nearby wire.
• d. all of these

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What would happen if I move a bar magnet in and out of a coil of copper wire?

• Electric current would disappear 
• The magnet would explode 
• Electric current will flow through the wire
• It would produce a gravitational field

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Which activity will produce the highest current?

• Move the magnet bar into the coil while the coil remains stationery

• Move the coil into the magnet bar while the magnet remains stationery

• Move the coil and magnet towards each other

• Move the coil and magnet away from each other

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What type of current is being produced?

• Alternating

• Direct

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