Unit 3.2: Modeling Electric and Magnetic Fields - Part 1

Can magnets interact without touching?

• Yes

• No

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

• Magnetic Field

• Magnetic Fan Lines

• Magnetic Area

• Magnetic Location

What will the magnets in the picture do?

• Attract

• Repel

• Neither attract nor repel

• Both attract and repel

What will the magnets in the picture do?

• Attract each other

• Repel each other

• Both attract and repel

• Neither attract nor repel

Permanent magnets are made out of which materials?

• Cobalt, Nickel, and Iron

• Copper, Chromium, and Cobalt

• Gold, Silver, and Platinum

• Copper, Nickel, and Iron

Magnetic fields are strongest _______.

• at both poles

• at the north pole

• at the south pole

• between the poles

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

• magnetic domains

• magnetic fields

• magnetic sections

• electromagnets

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

• calculator

• compass

• GPS

• map

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

• deflecting solar wind

• keeping track of time

• creating sunny weather

• making it look cool in front of the other planets

Why does a compass needle point north?

• because north is up

• it lines up with Earth's magnetic field

• because of magic

• the compass is programmed to do so