Electricity-basics

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Across
  1. 5. Unit of measurement for electric potential
  2. 8. Material that resists the flow of electricity, like rubber
  3. 9. Material that allows electricity to flow easily, like copper
  4. 10. Negatively charged particle in an atom
  5. 12. Unit of measurement for electrical resistance
  6. 13. Opposition to the flow of current, measured in ohms
  7. 15. Wire Wire that carries electrical current to appliances
  8. 17. Wire Wire that completes the circuit and returns current
  9. 20. Current Current that changes direction periodically
Down
  1. 1. Positively charged particle in an atom
  2. 2. Unit of measurement for electric current
  3. 3. A device used to open or close an electrical circuit
  4. 4. Electrical potential difference, measured in volts
  5. 6. Flow of electrons in a circuit, measured in amperes
  6. 7. A safety device that prevents overloading of a circuit
  7. 11. A complete path for electric current to flow
  8. 14. Flow of electric charge through a conductor
  9. 16. Charge No overall charge, found in uncharged objects
  10. 18. A device that stores and provides electrical energy
  11. 19. Current Current that flows in one direction