State common uses of electricity, including heating, lighting, battery charging and powering motors and electronic systems

Explain everyday applications using ideas about conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) heating a room by convection (c) measuring temperature using an infrared thermometer (d) using thermal insulation to maintain the temperature of a liquid and to reduce thermal energy transfer in buildings

Explain why the outer casing of an electrical appliance must be either non-conducting (double-insulated) or earthed