A gaming console has a power rating of 0.25 kW0.25\text{ kW}0.25 kW. Calculate the energy transferred, in kWh\text{kWh}kWh, if the gaming console is switched on for 6 hours6\text{ hours}6 hours.
Energy transferred = ............................................................ kWh\text{kWh}kWh
A laptop works with an 18.0 V18.0\text{ V}18.0 V power supply. It has a current of 3.45 A3.45\text{ A}3.45 A. Calculate the power rating of the laptop.
Power = ............................................................ W\text{W}W
39 exam-style questions on OCR GCSE Physics Powering Earth. Each one has a worked solution and a mark scheme showing where the marks go.