Unit Review - Magnetism & Electricity

Can magnets interact without touching?

• yes

• no

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The area of magnetic force around a magnet is known as its ____.

• magnetic field

• Magnetic fan lines

• Magnetic area

• Magnetic location

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What will the magnets in the picture do?

• attract

• repel

• attract and repel

• neither attract nor repel

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NGSS.MS-PS2-5

What will the magnets in the picture do?

• attract

• repel

• attract and repel

• neither attract nor repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Permanent magnets are made out of which materials?

• copper, chromium, and cobalt

• copper, nickel, and iron

• cobalt, nickel, and iron

• gold, silver, and platinum

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Magnetic fields are strongest...

• at the south pole

• at the north pole

• at both poles

• between the poles

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Magnets are made of tiny sections of magnetic fields that are aligned to produce a larger magnetic field. These are called ___.

• magnetic domains

• electromagnets

• magnetic fields

• magnetic sections

A ____ is a device that has a magnetic needle that spins freely. It is used for navigation because its needle usually points north.

• compass

• GPS

• calculator

• map

The Earth's magnetic field is most useful for...

• deflecting solar wind

• making it look cool in front of the other planets

• keeping track of time

• creating sunny weather

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Ancient people discovered magnetic rocks called lodestones. For what purpose did they use them?

• starting fires

• compasses

• sculptures

• magnetic weapons