| A | B |
|---|
| electromagnet | a wire carrying electricity around an iron or steel core |
| polarity | the arrangement of poles within a magnetic substance |
| attract | to draw objects to one another |
| insulation | a covering made from nonconducting material used to prevent short circuits or shocks from electricity |
| magnetic pole | the north or south end of a magnet or electromagnet |
| battery | a group of two or more cells connected together to furnish electrical current |
| compass | a device for finding direction consisting of a magnetized needle which is free to turn in response to the magnetic field of the earth |
| force field | the invisible field of energy surrounding an object such as a magnet or electromagnet |
| repel | to push objects away from one another such as like poles of magnets or electromagnets |
| magnet | any material which attracts other materials through invisible force fields caused by the motion of unpaired electrons |
