Power and Domestic Electric Appliances — AQA GCSE Combined Science: Synergy 8465
AQA GCSE Combined Science: Synergy · 8465
Power and Domestic Electric Appliances
What you need to know
Describe how everyday electrical appliances transfer energy from batteries and AC mains to the kinetic energy of motors or the thermal energy of heating devices.
Describe the changes involved in the way energy is stored when a system changes, such as bringing water to a boil in an electric kettle.
Explain the relationship between the power ratings for domestic electrical appliances and the changes in stored energy when they are in use.
Understand that the amount of energy an appliance transfers depends on its power and the duration it is switched on.
Describe and calculate the changes in energy involved when a system is changed by work done when a current flows.
Explain the everyday and technological applications of science in the context of electrical appliances.
Recall and apply the equations for energy transferred:
E=
