Electromagnets and Morse Code

The strongest parts of the magnet are ...

• fronts

• backs

• poles

• middle

A magnet will pick up an object that is made of...

• plastic

• iron or steel

• glass

• copper

What would happen is a north pole of a magnet came close to a north pole of another magnet?

• they would be attracted to each other

• they would be repelled from each other

The area around a magnet is called the .....

• attraction zone

• work area

• magnetic field

• hot zone

A north pole and a south pole will attract.

• True
• False

Every magnet has a:

• East and West pole

• North and South pole

• East and South pole

• North and West pole

• Chicago and Saint pole

The picture is an example of an:

• Electric circuit
• Electromagnet
• Electric nail
• Electric power cell

To make this electromagnet stronger you could:

• use less wire

• have fewer wire coils around the nail

• have more wire coils around the nail

• use a plastic core

Particles with opposite charges ____________ and particles with same (or like) charges ____________.

• attract, repel

• repel, repel

• attract, attract

• repel, attract

Which of the following is not a good conductor?

• Copper

• Silver

• Aluminum

• Plastic