Magnets

What of these objects are attracted to a magnet?

• Silver
• Water
• Gold
• Iron

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

How is Earth's magnetic field similar to that of a magnet?

• It is hundreds of miles long
• It has north and south poles
• It is made in Earth's core
• It is shaped like a horseshoe

What is our best evidence that Earth has a magnetic field?

• All things fall toward Earth's center
• A compass needle lines up with it
• Winds blow from east to west
• Earth's oceans all have currents

Where is Earth's magnetic field strongest?

• Along the outside lines
• Along the inside lines on either side
• At the poles
• In the space outside of the lines

Why does a compass needle point north?

• The compass is a bar magnet
• Because north is up
• Because it's magic
• It lines up with the Earth's magnetic field

When two magnets attract, they ______________

• push apart
• change color
• get colder
• pull together

When two magnets repel, they ________________

• change color
• pull together
• push apart
• get colder

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

A magnet cannot not move which of the following objects?

• a paper clip
• a nail
• a toothpick
• a staple