An electric oven operates at two different power settings during a cooking cycle. It transfers energy at 2.4 kW for 25 min and then at 1.2 kW for 15 min.
Calculate the total electrical energy transferred to the oven during the cooking cycle. Give your answer in kWh\mathrm{kWh}kWh.
81 exam-style questions on Edexcel GCSE Physics 10.4 Mains electricity, covering 10.4.1 Direct and alternating current, 10.4.2 Live, neutral and earth wires; safety, 10.4.3 Mains wire potential differences and dangers, and 10.4.4 Power ratings and energy use. Each one has a worked solution and a mark scheme showing where the marks go.