Magnetism and Electromagnetism

_______ magnets have a North pole and a South pole.

• No
• Some
• All
• Broken

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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.

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NGSS.MS-PS2-3

What kind of magnet can be turned on and off?

• a refrigerator magnet
• an electromagnet
• magnetite
• iron

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NGSS.MS-PS2-3

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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NGSS.MS-PS2-3

NGSS.MS-PS2-5

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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NGSS.MS-PS2-3

NGSS.MS-PS2-5

Where is the strongest attraction force of the magnet?

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

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NGSS.MS-PS2-3

Iron, Nickel and cobalt are all __________________ materials

• Shiny
• poles
• magnetic
• cold

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NGSS.MS-PS2-3

How is an electromagnet different from a permanent magnet?

• An electromagnet is smaller and less powerful.
• An electromagnet's magnetism can be turned off.
• An electromagnet can be built without using metal.
• An electromagnet does not attract objects containing iron.

A simple electromagnet can be made with which of the following?

• an electric current
• a turbine and nail
• a nail, a wire, and a battery
• a compass and a battery

Which rule do we use to predict the direction a current carrying wire will move in a magnetic field?

• Fleming's Left Hand Rule
• Fleming's Right Hand Rule
• Faraday's Left Hand Rule
• Faraday's Right Hand Rule

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NGSS.HS-PS2-5

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