Magnetism Review for Quiz

What can iron filings be used to show?

• Gravitational field

• Magnetic field lines

• Electric field

• All of the above

When a current carrying a wire is wrapped around an iron core, what can it create?

• A battery

• A generator

• A motor

• A magnetic field

Which of these objects do not interact with magnets?

• Other magnets

• Paper

• Electric current

• Steel

A natural magnet is called...

• Compass

• Electromagnet

• Lodestone

• Domains

An electromagnet is different from a permanent magnet because it...

• can be turned on and off

• requires electricity to be a magnet

• can be made stronger or weaker

• All of the above

What would happen if a bar magnet's south pole magnetizes paper clips, then the top of each paper clip is now a north pole, and the bottom is a south pole. Why?

• Opposites do not attract and magnetic domains do not align.

• Opposites attract and magnetic domains align and make the paper clips temporary magnets.

How can you make an electromagnet stronger?

• take coils away

• add coils

If you were given a magnet with unmarked poles, how could you determine which pole was which?

• Use a compass.

• Use a magnet with market poles.

• Both A and B

The following is a picture of an ....

• magnet

• electromagnet

• nail

• coiled wire

A powerful magnet that can be turned on and off by using electricity is a(an)..

• magnet

• electromagnet

• center

• pole