Electromagnetism and Benchmark #2 Review

Front

What happens when two magnets with the same poles are brought close together?

Back

They will repel each other.

Front

What happens to the strength of an electromagnet when you wrap more coils around it?

Back

It will become stronger.

Front

What decreases the strength of an electromagnet?

Back

Using a different type of wire that doesn't conduct electricity as well as the first wire.

Front

What will a negatively charged object do to another negatively charged object?

Back

They will repel each other.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What is the effect of increasing the electric current in an electromagnet?

Back

It increases the strength of the electromagnet.

Front

What materials can be used to make a stronger electromagnet?

Back

Iron is commonly used to increase the strength of an electromagnet.

Front

What is the relationship between electric current and magnetism?

Back

Electric current produces a magnetic field.

Front

What happens when you place a magnet near a piece of iron?

Back

The iron becomes magnetized and is attracted to the magnet.

Front

What is the difference between permanent magnets and electromagnets?

Back

Permanent magnets maintain their magnetism, while electromagnets require electric current to produce a magnetic field.