Electricity Review

2. Too many batteries in a circuit may cause a the bulb to _________.
3. The path where an electric current flows.
6. A flash of light in the sky caused by a discharge of electricity between clouds and the ground..
9. _________hour,(kW·h) is a unit of energy equal to 1000 watt-hours.
10. An electric circuit in which current branches to two or more paths.
13. Protons have a _________ charge.
14. When you rub a balloon to your hair you create ______ electricity.

1. The device which turns an electrical current on and off; opens and closes the circuit.
2. Adding an extra battery to a circuit containing a bulb, how cause the bulb to become __________.
4. Electrons have a _________ charge.
5. Neutrons have a _________ charge.
7. A material that does not allow electric charges or heat to move freely on, or through it
8. Electrical wires are made of metal because they ________ electricity.
11. Batteries are an example of __________ currents.
12. An electric circuit with only one path for the flow of a current.