Electromagnets

Front

What effect will the south pole of one magnet have on the south pole of another magnet?

Back

Repulsive

Front

How can the electromagnet be made stronger? Options: Add more coils of wire to the nail., Use a smaller battery., Reverse the poles of the magnet., Remove all the coils and the nail.

Back

Add more coils of wire to the nail.

Front

What kind of magnet can be turned on and off? Options: refrigerator magnet, electromagnet, magnetite, iron

Back

electromagnet

Front

Surrounding every magnet is a __________  __________.

Back

magnetic field

Front

In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.

Back

electric, wire, iron

Front

What is most likely to happen when the switch is closed?

Back

A magnetic field should be produced.

Front

What are the ends of a magnet called?

Back

North and South poles

Front

The attraction or repulsion created by spinning electric charges is called -

Back

magnetic force

Front

Any material that attracts iron or materials containing iron is a(n)

Back

magnet

Front

How do electromagnets differ from regular magnets? Options: A. They can be turned off and on, B. Their polarity can be reversed, C. Their strength can be changed, D. All of the above

Back

They can be turned off and on, their polarity can be reversed, and their strength can be changed.