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1.5 Forces

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Question 76

Which statement about the moment of a force is not correct?

A

The moment of a force about a point increases if either the magnitude of the force or its perpendicular distance from the point increases.

B

The SI unit for the moment of a force is the newton per metre (N/m\text{N/m}N/m).

C

The moment of a force provides a measure of its turning effect.

D

According to the principle of moments, if an object is in equilibrium, the sum of the clockwise moments about any point is equal to the sum of the anticlockwise moments about that same point.

Markscheme

1.5 Forces Questions

  1. IGCSE
  2. /Physics
  3. /1.5 Forces

245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.

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