| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
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A force or a system of forces may cause an object to rotate. |
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What causes an object to rotate? |
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Students should be able to describe examples in which forces cause
rotation. |
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What examples are there in which forces cause rotation? |
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The turning effect of a force is called the moment of the force. |
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What is the turning effect of a force called? |
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(MS) The size of
the moment is defined by the equation:
moment of a force = force ? distance
M = F d
moment of a force, M, in newton-metres, Nm
force, F, in newtons, N
distance, d, is the perpendicular distance from the pivot to the line of action
of the force, in metres, m. |
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What equation is used to calculate the moment of a force? Include SI units. |
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If an object is balanced, the total clockwise moment about a pivot equals
the total anticlockwise moment about that pivot. |
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When the total clockwise moment about a pivot equals
the total anticlockwise moment about that pivot how are the forces described? |
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Students should be able to calculate the size of a force, or its distance from
a pivot, acting on an object that is balanced. |
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