A student releases a toy marble from a starting height of 1.50 m at one end of a curved plastic track. Explain why the marble does not reach a height of 1.50 m when it rolls up the opposite side of the track.
82 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.