Front

What do the lines around this magnet represent?

Back

Magnetic Field

Front

A paper clip is an example of a:

Back

magnetic material

Front

What happens when two north poles of a magnet are placed together?

Back

they repel

Front

What kind of magnet can be turned on and off?

Back

electromagnet

Front

The strongest part of a magnet is...

Back

the poles.

Front

A simple electromagnet can be made with which of the following? Options: an electric current, a turbine and nail, a nail, a wire, and a battery, a compass and a battery

Back

a nail, a wire, and a battery

Front

What is responsible for the Magnetic Field around Earth?

Back

The Earth's molton iron core

Front

If you cut a magnet in half, what happens to the poles?

Back

Both halves get a North pole and a South Pole

Front

2 ways to increase the magnetic force of an electro-magnet: Increase the current flow, reduce the number of coils, Increase the voltage, decrease the number of coils, Increase the number of coils and the current flow, Spread out the coils, replace iron core with rubber.

Back

Increase the number of coils and the current flow