E and M

5. The region around a magnet where magnetic forces act. magnetic field.
6. the relationship between electricity and magnetism.
10. Strong temporary magnet made by inserting an iron core into a wire coil and passing an electric current through the coil.
12. A material that allows electrons to move easily through it.
13. A material that does not allow heat or electrons to move through it easily.
15. A coil of wire with a current that acts a bar magnet.
16. A device that uses electromagnetic induction to induce electrical current by rotating loops of wire through a magnetic field.
18. A device that contains a rotating electromagnet that changes electrical energy to mechanical energy.

1. The two ends of a piece of magnetic material where the magnetic forces are strongest, labeled north pole and south pole.
2. a force produced when magnetic poles interact.
3. An electrical circuit where the current flows through more than one path. If one path is interrupted, current will still flow through the other paths.
4. A device that can increase or decrease the voltage of an alternating current.
7. An electrical circuit where the current has only one path. If the path is interrupted in any point, it stops current flow in the entire circuit.
8. the flow of electricity in an electronic circuit, and to the amount of electricity flowing through a circuit
9. A property of some materials in which there is a force of repulsion or attraction between certain like and unlike poles.
11. The opposition to the flow of electrons through a conductor; measured in ohms.
14. a force that affects subatomic particles and other objects that contain electrical charge.
17. An area surrounding an electron that exerts a force on anything nearby with an electric charge; strongest nearest the electron and weakens with distance.