Edexcel IGCSE Physics 1 30p Moments Equation Questions

A moment measures the turning effect of a force about a pivot. Multiply the force by its perpendicular distance, or rearrange the equation to find a missing force or distance.

Exam points

Calculate a moment using moment = force × perpendicular distance from the pivot, with consistent units such as N m or N cm.
Rearrange the moments equation to calculate an unknown force or perpendicular distance from the pivot.
Predict or evaluate how changing the force or perpendicular distance changes the moment, including comparing moments from practical data.

[Maximum number: 1]

Diagram 1 shows a wooden plank balanced horizontally on two supports, A and B.
A block is suspended from the plank between the supports by a cable of negligible weight.

Diagram 1

The weight of the block is 260 N .

State the formula linking moment, force and perpendicular distance from the pivot.

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Edexcel IGCSE Physics 1 30p Moments Equation Questions question 1