Physics Electricity Crossword

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Across
  1. 1. Supply (a device) with mechanical or electrical energy
  2. 4. (dc) An electric current flowing in one direction only
  3. 5. The change in electrical potential associated with the passage of an impulse along the membrane of a muscle cell or nerve cell
  4. 9. The refusal to accept or comply with something
  5. 11. a unit of energy equal to the work done by a power of 1000 watts operating for one hour
  6. 12. SI base unit
  7. 13. The difference of electrical potential between two points
  8. 14. Superconductivity is an electrical resistance of exactly zero which occurs in certain materials below a characteristic temperature
  9. 15. In mathematics, the root mean square
  10. 16. speed of electronics
Down
  1. 2. current Type of current in a battery
  2. 3. A flow of electric charges
  3. 5. (ac) An electric current that reverses its direction many times a second at regularintervals, typically used in power supplies
  4. 6. The SI unit of electrical resistance
  5. 7. A law stating that electric current is proportional to voltage and inversely proportional to resistance
  6. 8. A measure of the resisting power of a specified material to the flow of an electric current
  7. 10. Used in remotes that give it “power”
  8. 17. The SI unit of power, equivalent to one joule per second