Other questions in this quiz

2. efficiency

  • total power input / useful power output
  • (total power input / useful power output) x 100
  • (useful power output / total power input) x 100
  • useful power output / total power input

3. density

  • mass / volume
  • weight x volume
  • mass x volume
  • weight / volume

4. resultant force

  • mass / velocity
  • distance x energy transferred
  • mass x acceleration
  • energy transferred / distance

5. power

  • charge flow² x resistance
  • current² x resistance
  • resistance / current
  • charge flow² x potential difference

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