A spring obeys the relationship F=keF = keF=ke. Which statement about the spring is correct?
The extension doubles when the spring constant doubles.
The extension is the same for every force applied.
The extension doubles when the force applied doubles.
The force needed doubles when the spring constant halves.
40 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.