Equations

• What is the equation for gravitational potential energy?

  mass x gravitational field strength x height
• What is the equation that links power, energy transferred and time?

  Power = energy transferred / time
• What is the equation linking efficiency, useful energy output and total energy output?

  Efficiency = useful energy output/total energy input
• What is the equation for charge flow?

  Charge flow = current x time
• What is the equation for potential difference?


  Potential difference = current x resistance
• What is the equation that links power, potential difference and current?

  Power = potential difference x current
• What is the equation that links power, resistance and current?

  Power = (current)^2 x resistance
• What is the equation that links energy transferred, charge flow and potential difference?

  Charge flow x potential difference
• What is the equation for density?

  Density = mass/volume
• What is the equation linking power, work done, and time?

  Power = work done / time
• What is the equation linking energy transferred, power and time?

  Energy transferred = power x time