Turning forces
I can investigate and calculate the size of turning forces.
Turning forces
I can investigate and calculate the size of turning forces.
Lesson details
Key learning points
- A moment causes turning.
- Moment = force × (perpendicular) distance from the pivot.
- Moments are measured in Newton-metres (Nm).
Common misconception
The turning effect is a force (it is often wrongly called a turning force).
Correct any use of the erroneous term ‘turning force’ and use examples of the turning effect caused by force with a lever.
Keywords
Balanced - A beam is balanced if it is not starting to rotate about its pivot.
Newton-metre - One unit for the turning effect of a force is the newton-metre (N m).
Newton-centimetre - Another unit for the turning effect of a force is the newton-centimetre (N cm).
Moment - The turning effect of a force is called a moment.
Content guidance
- Risk assessment required - equipment
Supervision
Adult supervision required
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
Exit quiz
6 Questions
a unit for the turning effect of a force for large distances
a unit for the turning effect of a force for small distances
the size of the turning effect of a force