Electricity Unit

3. A round Cylinder piece of metal
4. Meter A popular combination meter used in electronics
7. Law The relationship between electric current
9. A measure of energy available
12. High speed rotary engine driven by water, steam, or other gases
13. Form of energy that can produce light.
15. Magnetic force around an electric wire or iron case
16. Special metal elements in a vacuume that produces light when electricity flows through it
17. Opposite ends of a magnet
19. Any tendency of a material of a material to prevent electrical flow
20. material that provides great resistance to the flow of electricity

1. An electrical source and wires connected to a light, heater, or motor
2. A measure of electrical pressure
5. Making an electrical connection between a piece of equipment and the earth
6. Any material that will permit electrons to move through it
8. The force that attracts or repels iron or steal
10. A measure of the right of flow of current in a conductor
11. Circuit A condition where electric flows back to its source
14. A device that produces direct current
18. Circuit An electrical circuit in which there is at least one place where current cannot flow