Electrical Puzzle

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Across
  1. 4. convert mechanical to electrical energy.
  2. 5. an example of a safety equipment.
  3. 7. Any suddenly occurring un intentional event which causes injury.
  4. 9. extinguisher used to put out various types of fire.
  5. 11. State or condition of being safe, freedom from danger risk or injury.
  6. 12. the work at which work is done.
  7. 14. unit for power.
Down
  1. 1. has both magnitude and direction.
  2. 2. helper enrolled in a formal training or programme.
  3. 3. movement of electrons.
  4. 6. cut wood or metal.
  5. 8. helper person who assist an electrician.
  6. 9. is an example of fire extinguisher.
  7. 10. is necessary to sustain combustion.
  8. 13. unit for resistance.