Water in an electric kettle is brought to the boil. Which describes the energy transfer taking place?
mechanically, from the mains supply to the kinetic store of the water
by radiation, from the thermal store of the water to the mains supply
electrically, from the chemical store of the water to the mains supply
electrically, from the mains supply to the thermal store of the water
40 exam-style questions on AQA GCSE Physics 1.1 Energy changes in a system, and the ways energy is stored before and after such changes, covering 1.1.1 Energy stores and systems, 1.1.2 Changes in energy, 1.1.3 Energy changes in systems, and 1.1.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.