Other questions in this quiz

2. E = P x t ... Power measured in?

  • kWh
  • kW
  • W
  • J

3. efficiency = useful power out ÷ total power in (x 100%) ... what is power measured in?

  • J
  • kg
  • W
  • N

4. v = f x λ ... What is wavelength (λ) measured in?

  • J
  • km
  • m
  • kg

5. v = f x λ ...What is f?

  • frequency
  • time
  • speed
  • weight

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