Electricity Crossword Puzzle

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Across
  1. 3. allow charges to move freely
  2. 5. potential difference between circuits
  3. 8. items that convert electricity into other forms or energy
  4. 9. resource that may be used over and over again
  5. 11. 2 wires made with diffrent types of metal
  6. 12. unlike charges attract. like charges repel, and charged objects attract uncharged ones
  7. 13. circuits with 1 current path
  8. 17. switch to cut out power
  9. 19. when current regularly changes direction
  10. 22. Charge produced by rubbing objects together
  11. 24. used to "step up" the voltage for transmission
  12. 26. substance that conducts electrical current
  13. 27. allows little or no resistance to charged particles
  14. 28. strong temp. magnet, made with soft iron core and a coil wire
  15. 29. Correct term for static electricity; not stationary
  16. 30. device that measures ohms
  17. 31. opens and closes a circuit
Down
  1. 1. "live wire" that carries electricity and is insulated
  2. 2. device to safely channel energy that leaks
  3. 4. combination of different cells
  4. 5. standard unit for potential difference
  5. 6. 2 states that represent numbers and letters
  6. 7. circuits with several current paths
  7. 10. fuels that are consumed faster than they can be replaced
  8. 14. flow of electric charge
  9. 15. filled with neutral or uncharged particles
  10. 16. do no conduct electricity
  11. 18. symbol to represent one of many loads
  12. 20. burns and uses heat to make electricity
  13. 21. resistance between 2 points
  14. 23. object that creates electricity
  15. 25. 2 metals in a voltaic or chemical cell