Across
- 2. A material (normally very cold) with zero resistance
- 4. The flow of electrons through a material is called electric
- 7. Main source of electrical energy in the United States
- 9. A device that will open or close a circuit
- 10. An electric discharge from the sky to the ground during a storm
- 14. A safety device that break a circuit when too much current is flowing
- 15. A device that uses electricity to spin a magnet
- 16. The charge on an electron
- 17. Kind of electricity resulting from a build up of charged particles
- 19. Croatian who developed alternating current
- 20. A coil of wire that carries an electrical current
- 23. The charge on a proton
- 24. A circuit with only one path through which electrons flow
Down
- 1. A device that resists the flow of electricity in a circuit
- 3. A material that conducts electricity well
- 5. A device that can change voltage and current
- 6. A voltage supply used in flashlights and many toys
- 8. A path through which electric current flows
- 11. A circuit with more than one path through which electrons can flow
- 12. Electricity is the movement of ___________ through a conductor
- 13. A material that does not conduct electricity well
- 18. The unit that current is measured in
- 21. A safety device that break a circuit when too much current is flowing
- 22. A device that spins a magnet to generate electricity