Magnetism

Front

Can magnetic field lines cross at some point?

Back

False

Front

Do magnetic field lines decrease in strength the further you move away from a magnet?

Back

True

Front

Method to remove iron filings from a mixture.

Back

A magnet

Front

How can you increase the strength of an electromagnet?

Back

Increase the number of coils or Add more batteries

Front

Materials required to make an electromagnet: A copper wire, A copper core, An iron wire, A wood core

Back

A copper wire

Front

Materials required to make an electromagnet: A permanent magnet, An iron wire, An iron core, Copper paperclips

Back

An iron core

Front

Where do electromagnets get their power?

Back

An electrical source (usually a battery)

Front

How does the core material affect the strength of an electromagnet?

Back

The core must be iron for the electromagnet to work properly.

Front

How does increasing the electric current affect the strength of an electromagnet?

Back

Increasing the electric current increases the strength of the magnet.

Front

Does distance affect the strength of a magnet?

Back

True