cross puzzle

3. Of, using, producing, or caused by heat.
6. An electrical component used for connecting, breaking, or changing the connections in an electrical circuit.
7. A flash of light caused by an atmospheric electrical discharge between two clouds, or between a cloud and the earth.
9. The smallest unit of matter. Everything in the world is made of different combinations of atoms.
11. A negatively charged particle that orbits the nucleus of an atom. The flow of electrons produces electricity.
12. The path followed by a flow of electric current.
13. A single or group of connected electric cells that produces a direct electric current (DC).
16. Energy used to do work measured in watts.
18. An electrical safety device consisting of a wire or strip of fusible metal that melts and interrupts the circuit when the current exceeds a preset amperage.
19. A unit for measuring electrical energy. (demand)
20. An identified force that exists around a magnet or electrical field.

1. A unit for measuring electric power.
2. Any material that will not allow electricity to easily flow through.
4. An object surrounded by a magnetic field that has the ability to attract iron or steel.
5. Electric current flowing in only one direction
8. The unit of measurement of force used to produce an electric current.
10. A device that converts electrical energy into mechanical energy.
14. Measurement of current flow through a conductor.
15. The ability to do work. Energy = Power x Time
17. Electric current that reverses directions at regular intervals.