A student pushes a door at right angles to its surface. The force is halved and its distance from the hinges is doubled. How does the moment change?
It becomes half as large.
It stays the same.
It becomes four times as large.
It becomes twice as large.
102 exam-style questions on Edexcel GCSE Physics 9.2 Moments, covering 9.2.1 Rotational effects of forces and moments, 9.2.2 The principle of moments, and 9.2.3 Levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.