Electricity

3. A material that conducts heat, light, electricity, or sound. Metals are good examples of electrical conductors!
9. The unit in which electrical resistance is measured.
10. An electric current that switches back and forth. While a direct current flows in only one direction, an alternating current periodically switches back and forth.
11. A circuit with only one path for an electrical current to flow through.
13. A device used to interrupt the flow of electricity through a circuit.
14. A container in which chemical energy is converted into electricity and stored.
15. A graphical representation of an electrical circuit.

1. The point at which electrical currents are measured.
2. The flow of an electric charge.
4. An electric charge flowing in only one direction.
5. A material that does not conduct heat, light, electricity, or sound. Rubber, wood, and glass are examples of great insulators!
6. A circuit with two or more paths for an electric current to flow.
7. The amount that a device reduces the flow of electricity through it.
8. A machine that converts electrical energy into mechanical energy.
12. The part of an atom that is negatively charged.