A spring in an exercise machine is stretched when a handle is pulled. After the handle is released, the spring returns completely to its original length.
Which statement about the energy transfer is correct?
The spring began to store energy only when the handle was released.
The elastic potential energy stored was half the work done stretching the spring.
The work done stretching the spring equalled the elastic potential energy stored.
The spring did not store energy because it returned to its original length.
106 exam-style questions on AQA GCSE Physics 5.3 Forces and elasticity, covering 5.3 Forces and elasticity. Each one has a worked solution and a mark scheme showing where the marks go.