A cable guide in a machine is a thin plastic strip. A technician supports the ends of the strip and pushes down on its centre so that the strip bends. The technician then removes the force.
Which observation would show that the strip had been elastically deformed?
The strip bent while the force was acting.
The strip needed a large force to make it bend.
The strip stayed slightly bent after the force was removed.
The strip returned to its original shape after the force was removed.
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.