Across
- 2. A measure of how difficult it is for electrons to flow through a material.
- 5. The opposite ends of a magnet.
- 7. A simple relations among voltage, current, and resistance in a circuit.
- 9. The amount of electric charge that can be stored.
- 10. An electric current that is constantly changing direction.
- 12. The rate at which an electrical appliance uses electrical energy.
- 13. A device used to show direction that contains a magnetized pointer.
- 14. The area around a magnet over which its magnetic force. is exerted.
- 17. The pieces in a circuit.
- 18. A thin wire inside the glass bulb of a light bulb, which heats up to glow and provide light.
- 19. A small particle that carries one unit of negative energy.
Down
- 1. Natural magnetized materials that are used as magnets.
- 3. A metal core that's soft that creates a very strong magnet after a current passes through wire that is coiled around it.
- 4. A circuit that has more than one path for the electric current to follow.
- 6. A circuit that has only one path for the electric current to follow.
- 8. The unit used to express power; equivalent to joules per second.
- 11. Attractive or repulsive force exerted by all charged objects on each other.
- 15. A device that transforms mechanical energy into electrical energy.
- 16. An electric current that always flow in one direction.
- 18. A safety device that melts when current is too high, breaking the circuit.