Day 1 Magnetism

Which one represents the magnetic field lines of magnets repelling?

• A

• B

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Which one represents the magnetic field lines of magnets attracting?

• A

• B

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When running a current through a wire, what do the blue lines represent?

• The wire spinning

• A magnetic field that was created

• Electrons leaving

• Electricity

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Electric current flowing through a wire produces

• static electricity
• an open circuit
• a permanent magnet
• a magnetic field

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Why does a compass needle point north?

• The compass is a bar magnet
• Because north is up
• Because it's magic
• It lines up with the Earth's magnetic field

To make this electromagnet stronger you could:

• use less wire

• have fewer wire coils around the nail

• have more wire coils around the nail

• use a plastic core

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The picture is an example of an:

• Electric circuit
• Electromagnet
• Electric nail
• Electric power cell

Every magnet has a:

• East and West pole

• North and South pole

• East and South pole

• North and West pole

• Chicago and Saint pole

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Why does the compass needle move at different locations?

• Because the needle is attracted to the magnetic field produced by the magnet

• Because north is up

• Because it is being attracted to the Magnetic North Pole

• Because north is down

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True or False: All metals stick to magnets.

• True
• False

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