Chapter 8 Basics of Electricity

12345678910111213141516171819
Across
  1. 4. unit that measures the resistance of an electrical current.
  2. 5. therapy: Also known as phototherapy.
  3. 7. Usually black and marked with a N or a - sign.
  4. 8. important way of promoting electrical safety.
  5. 10. current.
  6. 11. Movement of particles around an atom that creates pure energy.
  7. 13. Also known as voltage.
  8. 14. Prevents excessive current from passing through a circuit.
  9. 15. breaker: switch that shuts off an electric circuit at the first indication of an overload.
  10. 17. indicates the negative or positive pole of an electric current.
  11. 19. Substance that does not conduct electricity.
Down
  1. 1. usually red and marked with a P or a + sign.
  2. 2. Alternating current.
  3. 3. applicator for directing the electric current from the device to the clients skin.
  4. 6. Apparatus that changes alternating current to direct current.
  5. 9. of how much electric energy is being used.
  6. 12. Any material that easily conducts electricity.
  7. 16. current: Constant and direct current.
  8. 18. unit that measures the amount of an electric current.