1.3.15 - Moment of a force

Be able to use the equation for the moment of a force, moment of force = Fx where x is the perpendicular distance between the line of action of the force and the axis of rotation.

Use - moment of a force to connect the rule to the data and decision in the question.

This matters because - moment of a force determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - moment of a force to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Moment of a force is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.