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## GCE O-Level Physics Syllabus

## Chapter 5: Turning Effect of Forces

## Chapter Topics:

Moments

Centre of gravity

Stability

## Learning Objectives:

(a) Describe the moment of a force in terms of its turning effect and relate this to everyday examples.

(b) Recall and apply the relationship moment of a force (or torque) = force × perpendicular distance from the pivot to new situations or to solve related problems.

(c) State the principle of moments for a body in equilibrium.

(d) Apply the principle of moments to new situations or to solve related problems.

(e) Show understanding that the weight of a body may be taken as acting at a single point known as its center of gravity.

(f) Describe qualitatively the effect of the position of the center of gravity on the stability of objects.

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