Year 9 Physics

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Across
  1. 5. a small generator that spins its magnet instead of its coils
  2. 6. a solenoid with an iron rod in its centre
  3. 9. an instrument that measures voltage
  4. 11. a measure of the amount of energy provided to charges or used by them
  5. 12. a material that allows a current to pass
  6. 14. a wire of high resistance that melts if too much current flows in the circuit
  7. 16. a device that increases or reduces voltage
  8. 17. a material that blocks current
  9. 18. a large-scale electricity generator
  10. 19. the unit of current
  11. 20. a machine that uses electromagnetism to spin
  12. 21. the parts of a circuit
Down
  1. 1. an instrument that measures current
  2. 2. uses electromagnetism to produce electricity
  3. 3. a current-carrying loop of wire
  4. 4. the flow of charge
  5. 7. a measure of how difficult it is for current to pass
  6. 8. a solution or paste containing dissolved chemicals that conducts electricity
  7. 10. the percentage of energy that is converted into useful forms
  8. 13. the unit of resistance
  9. 15. shows how all the components in a circuit are connected