Magnetism

3. device that uses electromagnetic induction to increase or decrease the voltage of an alternating current
6. region surrounding a magnet that exerts a force on other magnets and objects made of magnetic materials.
7. device that uses electromagnetic induction to convert mechanical energy to electrical energy
11. electrical current that reverses its direction of flow in a regular pattern
12. group of atoms in a magnetic material in which the magnetic poles of the atoms are aligned in the same direction.
13. temporary magnet created when there is a current in a wire coil.
14. a cylindrical coil of wire, used to produce a magnetic field when an electrical current passes through the wire.
15. the attractive or repulsive force between electric charges and magnets

1. a device that uses an electromagnet to measure electric current
2. large wheel that rotates when pushed by steam, wind, or water and provides mechanical energy to a generator
4. the interaction between electric charges and magnets
5. electric current that flows in only one direction
8. process by which electric current is produced in a wire loop by a changing magnetic field
9. region on a magnet where the magnetic force exerted by a magnet is strongest; like poles repel and opposite poles attract.
10. device that converts electrical energy to mechanical energy by using the magnetic forces between an electromagnet and a permanent magnet to make a shaft rotate
12. the properties and interactions of magnets