Chapter 8 Basics of Electricity

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Across
  1. 2. unit that measures the amount of an electric current.
  2. 7. of how much electric energy is being used.
  3. 9. current: Constant and direct current.
  4. 11. breaker: switch that shuts off an electric circuit at the first indication of an overload.
  5. 13. applicator for directing the electric current from the device to the clients skin.
  6. 15. Any material that easily conducts electricity.
  7. 16. unit that measures the resistance of an electrical current.
  8. 17. usually red and marked with a P or a + sign.
  9. 18. Alternating current.
  10. 19. indicates the negative or positive pole of an electric current.
Down
  1. 1. important way of promoting electrical safety.
  2. 3. Apparatus that changes alternating current to direct current.
  3. 4. Prevents excessive current from passing through a circuit.
  4. 5. Movement of particles around an atom that creates pure energy.
  5. 6. Substance that does not conduct electricity.
  6. 8. Also known as voltage.
  7. 10. therapy: Also known as phototherapy.
  8. 12. current.
  9. 14. Usually black and marked with a N or a - sign.