S3 Electricity

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Across
  1. 4. Type of current DC that flows in one direction only
  2. 5. The SI unit of current one thousand milliamps equals one of these
  3. 8. A unit of time equal to 60 seconds
  4. 10. A common DC source that provides a steady flow of electrons
  5. 13. A device that displays waveforms like AC on a screen
  6. 15. Calculated by E equals Q times V measured in joules
Down
  1. 1. Type of current AC that changes direction periodically
  2. 2. Typical waveform shape for AC on an oscilloscope
  3. 3. The basic SI unit for time often used in Q equals I times t
  4. 6. This variable t is often expressed in seconds or minutes
  5. 7. This quantity often symbolized as Q is measured in coulombs C
  6. 9. The SI unit of energy one thousand of these equals a kilojoule
  7. 11. The SI unit of charge one thousand of these equals a kilocoulomb
  8. 12. Also called potential difference measured in volts V
  9. 14. The rate of flow of charge measured in amperes A