Energy transfers common mistakes

Common mistakes

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Explain that power transfer in a circuit device is related to potential difference across it and current through it..

  Fix itAnswer by clearly explaining how to explain that power transfer in a circuit device is related to potential difference across it and current through it..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Explain that power transfer is related to energy changes over time..

  Fix itAnswer by clearly explaining how to explain that power transfer is related to energy changes over time..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Recall and apply the equation P = V x I..

  Fix itAnswer by clearly explaining how to recall and apply the equation P = V x I..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Recall and apply the equation P = I^2 x R..

  Fix itAnswer by clearly explaining how to recall and apply the equation P = I^2 x R..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Identify power P in watts, potential difference V in volts, current I in amperes and resistance R in ohms..

  Fix itAnswer by clearly explaining how to identify power P in watts, potential difference V in volts, current I in amperes and resistance R in ohms..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Calculate electrical power from potential difference and current..

  Fix itAnswer by clearly explaining how to calculate electrical power from potential difference and current..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Calculate electrical power from current and resistance..

  Fix itAnswer by clearly explaining how to calculate electrical power from current and resistance..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Rearrange power equations to calculate potential difference, current or resistance where appropriate..

  Fix itAnswer by clearly explaining how to rearrange power equations to calculate potential difference, current or resistance where appropriate..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Apply MS 3b and MS 3c skills when calculating electrical power..

  Fix itAnswer by clearly explaining how to apply MS 3b and MS 3c skills when calculating electrical power..

• Power common mistake 1

  Giving a vague answer instead of directly addressing: Apply WS 4.5 when connecting circuit calculations to energy changes..

  Fix itAnswer by clearly explaining how to apply WS 4.5 when connecting circuit calculations to energy changes..