Electricity and Magnetism

4. The region around a magnet where magnetic forces act.
7. The opposition to the flow of electrons through a conductor; measured in ohms.
9. strong temporary magnet that has iron wrapped in a coiled wire.
11. has many pathways for electric current and wont stop if interrupted at any point.
14. device that contains a rotating electromagnet that changes electrical energy to ME.
17. expresses the extent to which it has more or fewer electrons than protons.
19. The unit for measuring resistance.
20. induction to induce electrical current by rotating loops of wire through a magnetic field.
21. A property of some materials in which there is a force of repulsion or attraction between certain like and unlike poles.
22. material that does not allow heat or electrons to move through it easily.
23. a flow of an electric charge, usually electrons.
24. stored energy.
25. tow ends where it is labeled south and north.
26. device that uses

1. A material that allows electrons to move easily through it.
2. has only one electric current path, and if interrupted at any point it will stop.
3. the relationship between electricity and magnetism.
5. when wheels revolve around a pin or shaft, for example it works in a generator
6. The ability to cause change.
8. Energy in the form of motion, as in a moving car or truck.
10. device that can increase or decrease the voltage of an alternating current.
12. it is wrapped in a coil form around iron to make an electromagnet
13. a coil of wire with a current that acts as a bar magnet.
15. area surrounding an electron that exerts a force on anything nearby with an electric charge.
16. The total amount of kinetic energy and potential energy in a system.
18. A difference in electrical potential, measured in volts with a voltmeter.