A gear with 12 teeth drives a gear with 36 teeth. The smaller gear makes 9 clockwise revolutions. How does the larger gear turn?
272727 revolutions clockwise.
333 revolutions anticlockwise.
272727 revolutions anticlockwise.
333 revolutions clockwise.
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.