Electricity Ch. 1 and 2

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Across
  1. 3. chemical that is a liquid or paste that allows the flow of electrons in a battery
  2. 6. device that used electromagnetic induction to convert mechanical energy to electrical energy
  3. 7. positively charged particles of an atom
  4. 12. a periodic current that continuously reverses direction
  5. 17. safety device used to stop machinery from moving
  6. 19. explosion that takes place when electricity short-circuits through the air or across inadequate insulation
  7. 23. positive terminal of a battery
  8. 25. prevents energizing of a circuit by locking switches, breakers, valves, or enclosures
  9. 27. substances that prevent electrons from flowing freely
  10. 28. substance that allows electrons to flow freely through it
Down
  1. 1. burn that occurs when electricity passes through the body
  2. 2. particles with no charge in the nucleus of an atom
  3. 4. group of voltaic cells that are connected in series or parallel, usually contained in one case
  4. 5. measurement of the rate of flow of electrons
  5. 8. procedure used to let other workers know who applied a lockout
  6. 9. negatively charged particles that orbit the nucleus of an atom
  7. 10. clothing and equipment worn to provide protection from hazards
  8. 11. units of measurement used in expressing power delivered to or consumed by electrical device
  9. 13. negative terminal of a battery
  10. 14. ability to do work
  11. 15. unit of measurement of electromotive force caused by difference in potential between two bodies
  12. 16. a current that always flows in on direction
  13. 18. device that transfers electrical energy between circuits through electromagnetic induction
  14. 20. the flow of electrons
  15. 21. unit in measuring amperage or current
  16. 22. unit of frequency that equals one cycle per second
  17. 24. unit of electrical power
  18. 26. pathway over which electrons can move
  19. 29. one complete repetition of a wave-form or signal
  20. 30. units of measurement used to express resistance