Unit 2 review

What subject is attracted to a magnet?

• Silver
• Water
• Metal
• Iron

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NGSS.MS-PS2-3

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What happens when two north poles of a magnet are placed together?

• they repel
• they attract
• they cancel each other out
• the strength of the magnet is doubled

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NGSS.MS-PS2-3

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A north pole and a south pole will attract.

• True
• False

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

True or False: All metals stick to magnets.

• True
• False

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NGSS.MS-PS2-3

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Where is the force of attraction the strongest on a magnet?

• at the poles
• in the middle
• above the magnet
• below the magnet

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

The object inside a radio that makes a speaker work is called a(n) ______________________

• electromagnet

• permanent magnet

• electron cloud

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NGSS.MS-PS2-3

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.

Tags

NGSS.MS-PS2-3

NGSS.MS-ETS1-2

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

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NGSS.MS-PS2-3

Surrounding every magnet is a __________  __________.

• magnetic field
• electrical current
• another magnet
• an enemy

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NGSS.MS-PS2-3

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The attraction or repulsion created by spinning electric charges is called -

• A. electric generator
• B. magnetic force
• C. solenoid
• D. electromagnet

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NGSS.MS-PS2-3