A pendulum is pulled to one side and released. It swings to and fro, and each swing is slightly smaller than the one before, until the pendulum hangs at rest.
Which statement about the energy of the pendulum is correct?
The energy in its kinetic store at the lowest point is the same on every swing.
The total energy of the pendulum and its surroundings decreases as the swings get smaller.
The energy it had when released is all in its gravitational potential store once it is at rest.
The energy it had when released ends up spread out in the thermal store of the surroundings.
104 exam-style questions on AQA GCSE Physics 1.2 Conservation and dissipation of energy, covering 1.2.1 Energy transfers in a system and 1.2.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.