A train of mass 2.0 × 104 kg is travelling at 15 m s-1 when it brakes to a stop. Its initial kinetic energy is transferred only to the thermal stores of the brakes and the surroundings. The thermal store of the brakes increases by 1.80 × 106 J.
Calculate the energy transferred to the thermal stores of the surroundings.
121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.