Magnetism and Electromagnetism Review

_______ magnets have a North pole and a South pole.

• No
• Some
• All
• Broken

The relationship between electricity and magnetism is called

• electrical energy.
• induced current.
• electromagnetism.
• ferromagnetism.

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

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

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Surrounding every magnet is a(n) __________  __________.

• magnetic field
• electrical current
• smaller magnet
• funny saying

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What kind of magnet can be turned on and off?

• a refrigerator magnet
• an electromagnet
• magnetite
• iron

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When two magnetic North poles are brought close to each other, they will

• attract
• repel
• create sparks
• cancel each other out

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When two magnetic South poles are brought close to each other, they will

• attract
• repel
• create sparks
• cancel each other out

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When a magnetic South pole is brought close to a magnetic North pole, the magnets will

• attract
• repel
• create sparks
• cancel each other out

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When a magnet is able to move freely, its North pole will

• spin wildly
• point to the Earth's South pole
• point to the Earth's geographic North pole
• point to the Earth's magnetic North pole

When magnetic field lines are drawn, how do they look?

• straight lines
• criss-crossed lines like X's
• curved lines from N to S pole and outwards
• lines extending outward in all directions like drawing the Sun