Electromagnet Summary

Sophia made an electromagnet but it was very weak. How can she make it stronger?

• take away the battery

• wrap the wire loosely

• use less copper wire

• coiled more copper wire

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What component becomes a temporary magnet when electricity is flowing through the circuit?

• iron nail

• copper wire

• battery

• switch

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What component provides the pathway to carry electricity from component to component?

• battery

• wire

• switch

• iron nail

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Which component provides the energy or the power source to run the electromagnet?

• Iron nail

• wire

• Switch

• Battery

Princess made an electromagnet with one battery and wrapped a copper wire 30 times while Megan made and electromagnet with one battery and wrapped a copper wire 50 times. Which electromagnet is stronger?

• Megan

• Princess

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What is an electromagnet?

• a permanent magnet with a north and south pole

• a temporary magnet made from current carrying wire around a magnetic metal core

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This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Remove all the coils and the nail.

• Use a smaller battery.

• Reverse the poles of the magnet.

• Add more coils of wire to the nail.

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Which of the following is NOT part of an electromagnet?

• Toothpick

• battery

• Iron nail

• wire

How are electromagnets different from magnets?

• magnets have a North and South pole

• you can turn an electromagnet on/off

• magnets are more powerful

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Surrounding every magnet is a __________ __________.

• another magnet

• electrical current

• magnetic field

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