Magnetism and Electricity

What will happen when these magnets are brought close together?

• They will attract each other.
• They will repel each other.
• Both magnets will turn to the left
• Both magnets will turn to the right

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NGSS.MS-PS2-3

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A device that uses a free-moving magnetic needle to show direction is a:

• Ruler

• magnet

• compass

• magnetic field

Earth acts like a giant magnet because its center is made up MOSTLY of

• granite
• limestone
• iron
• nickel

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

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_{^{The magnet's shown will}}

• not move
• attract
• repel
• all of the above

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NGSS.MS-PS2-3

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What do the lines around this magnet represent?

• North Pole
• South Pole
• Magnetic Declination
• Magnetic Field

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NGSS.MS-PS2-3

Which electromagnet is stronger?

• A

• B

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NGSS.MS-PS2-3

Which electromagnet is stronger?

• A

• B

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NGSS.MS-PS2-3

What kind of magnet can be turned on and off?

• refridgerator magnet
• electromagnet
• magnetite
• iron

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NGSS.MS-PS2-3

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

• wire, iron, electric
• electric, wire, iron
• iron, electric, wire
• excited, hair, apple

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NGSS.MS-PS2-3