| A | B |
|---|
| electric field | surrounds electric charge and exerts force on other electric charges |
| magnetism | properties and interactions of magnets |
| magnetic field | region of space that surrounds magnet and exerts force on other magnets & magnetic objects |
| magnetic pole | region of magnet exerts strongest force |
| magnetic domain | groups of atoms with aligned magnetic direction |
| electron magnetic force | attractive or repulsive force between electric charges and magnets |
| electronmagnetism | interaction between electric charges and magnets |
| solenoid | cylindrical wire coil |
| electronmagnet | tempory magnet when current in coil |
| galvanometer | measure electric current with device useing electromagnet |
| electric motor | device changes electrical energy to mechanical energy |
| electromagnetic induction | generation of electric currentby changing magnetic field |
| voltage difference | related to force that caused electric charges to flow; measured volts (V) |
| generator | uses electromagnetic induction to change mechanical energy to electrical energy |
| turbine | large wheel rotated by mechanical energy |
| direct current (DC) | electric current always in one direction |
| alternating current (AC) | electric current that reverses direction in regular pattern |
| transformer | devices that increases or decreases voltage of AC current |
| electric current | flow of electric charges in wire of conductor |
