Electricity and Magnets Mini Review

Magnets have a north and a south pole. These two poles are the strongest parts of a magnet.

Magnets such as bar magnets and horshoes magnets are permanent magnets.

Objects made of iron and other metals will attract or pull towards a magnet.

Objects that are not made of iron and metal will repel or push away from the magnet.

Magnetism is a force that can push or pull objects that are on the opposite sides of materials.

Electromagnets are temporary magnets which means that they can be turned on and off.

An electromagnet is a temporary magnet that is created by sending electricity through a wire coil wrapped around a piece of iron. .

The more electricity used or the more coiled the wire, the stronger the electromagnet

One disadvantage to an electromagnet is that it needs some type of power source to work or operate.