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What is a magnetic field?

• A force field

• a magnetic field does not exist

• stationary electric charge

A north pole of the magnet is brought near a south pole

• they will repel

• they will attract

• so? nothing will happen

A magnetic domain is

• a cluster of aligned atoms

• a singular aligned atom

• a cluster of non-aligned atoms

In order to make an electromagnet, you need

• a magnet, a nail, some wires

• a battery, a nail, and a magnet

• a battery, a coil of wire, and a nail

• a loop of wire, contacts, and a battery

How can you destroy a magnet? Choose all that apply.

• Drop It

• Heat It

• Cover it with paper

• You can't destroy it

if you break a bar magnet in half

• the poles will seperate

• You will have two complete magnets

• it becomes unmagnetized

What would happen when two north poles of magnets are placed together?

• The force will pull them together (attract).

• The force will push them away from each other (repel).

• The strength of the magnet is doubled.

What would happen when the opposite poles of magnets are placed together?

• The force will pull them together (attract).

• The force will push them away from each other (repel).

• The strength of the magnet is doubled.

True or False: All metals are attracted to magnet.

• True

• False

Where is the force of attraction the strongest on a magnet?

• above the magnet

• below the magnet

• at the poles

• in the middle