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CAIE IGCSE Physics Moment Equation

Practise using moment = force × perpendicular distance from the pivot, with clear units and distances taken from simple diagrams.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • substitute force and perpendicular distance into moment = force × distance
  • select the correct perpendicular distance from a pivot before calculating a moment

1.5.2.2—Moment of a force as moment = force × question 1

[Maximum number: 1]

Fig. 7.1 shows a barrier at the entrance to a car park. The wooden barrier arm has a weight of 60 N which acts through the centre of gravity at the position shown on Fig. 7.1.

Fig. 7.1

Fig. 7.1

Initially the wooden barrier arm is horizontal.

Using Fig. 7.1, calculate the clockwise moment of the weight of the wooden arm about the pivot.
clockwise moment = Nm [1]

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