A moving trolley has 48 J of kinetic energy. It stops when it hits a buffer. The elastic energy store of the buffer increases by 35 J. How much energy is transferred to other stores?
13 J13\ \mathrm{J}13 J
35 J35\ \mathrm{J}35 J
48 J48\ \mathrm{J}48 J
83 J83\ \mathrm{J}83 J
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.