Electricity and Magnets Mini Review

Electricity and Magnets Mini Review

Multiple Select

Choose all the examples of magnets.

• bar magnet

• horseshoe magnet

• circle magnet

• little magnet

Magnets 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 Review

• 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.

Multiple Choice

Look at the photograph. What could the scholar replace the glass with and still attract the objects to the magnet?

• paper

• wood

• plastic spoon

Multiple Select

Which of the following objects would be good conductors of electricity?

• metal spoon

• paper clip

• piece of paper

• piece of wood

Multiple Select

Which of the following objects would be an insulator?

• rubber band

• paper

• metal spoon

• paper clip