Chapter 8 Basics of Electricity

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