2 | Electrical energy in the home
4: The amount of power is related to the rate at which energy is transformed
Lesson 1 | Power, current and voltage
Explain that power is the rate at which energy is transformed from one form to another.
Identify the relationship between power, potential difference and current.
Perform a first-hand investigation and use available evidence to demonstrate the relationship between current, voltage and power for a model 6V to 12V electric heating coil.
Lesson 2 | Energy and power
Identify that the total amount of energy used depends on the length of time the current is flowing and can be calculated using:
Solve problems and analyse information using:
Explain why the kilowatt-hour is used to measure electrical energy consumption rather than the joule.