Review Magnetism

What causes magnetism?

• the sun

• moving neutrons

• moving charges

• friction

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NGSS.MS-PS2-5

What are the microscopic regions of atoms with a commonly aligned magnetic field called?

• micromagnets

• amps

• magnetic zones

• magnetic domains

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NGSS.MS-PS2-3

Which of the following is NOT naturally magnetic?

• iron

• copper

• nickel

• cobalt

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Magnets can interact without touching.

• True
• False

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A north pole and a south pole will attract.

• True
• False

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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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• one N and one S

• both N

• both S

• each piece still has a N and S

Earth's magnetic poles are in the same place as the geographic poles.

• True
• False

The motion of liquid _______ in the Earth's core creates a magnetic field.

• Iron
• Magnesium

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

A ________ is a device that has a magnet on a needle that spins freely. It is used for navigation because its needle usually points north.

• calculator

• ruler

• compass

• map