| A | B |
|---|
| Magnet | Any material that attracks iron or materials containing iron |
| Poles | The parts of a magnet where the magnetic effects are strongest |
| Magnetic field | The region around a magnet in which in magnets forces can act |
| Temporary magnet | made from materials that are easy to magnetize, but tend to lose there magnettization easily |
| Permanent magnet | Are difficult to magnetize but tend to mantain their magnetic properties better |
| Aurora borealis | Aurora seen near the north magnetic poles |
| Electromagnetism | The interaction between electricity and magnetism |
| Solenoid | A coil of wire that produces a magnetic field when carrying an electric current |
| Electromagnet | A magnet that consist of a solenoid wrapped around an iron core |
| Electric motor | A device that changes electrical energy into kinetic enegy |
| Galvanometer | measures any current produced |
| Electromagnetic induction | The process by which an electric current is produced by changing magnetic fields |
| Generator | A device that uses electromagnetic induction to convert kinetic energy into electrical energy |
| Armature | A loop or coil of wire that can rotate |
| Comutator | A ring that is split in half and connected to the ends of the armature |
| Farromagnets | Magnets made with certain metals that have strong magnetic properties (iron nickle cobalt) |
| Transformer | increase or decrease |
