The force at the teeth of two interlocking gears is the same on both gears. Why does the larger gear produce the larger moment?
The larger gear has more teeth, so the force acts in more places at once
The larger gear has a larger radius, so the force acts further from its axle
The larger gear has a larger mass, so it has a larger turning effect
The larger gear turns more slowly, so the force acts on it for longer
40 exam-style questions on AQA GCSE Physics 5.4 Moments, levers and gears, covering 5.4 Moments, levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.