Torque and Rotation
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Last updated 1:18 AM on 2/6/26
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8 Terms
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Rotation
Motion of an object around a fixed point
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Torque (τ)
Measure of how effective a force is at causing rotation
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Pivot / Fulcrum / Axis of rotation
The point about which an object rotates
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Moment arm (radius, r)
Perpendicular distance from pivot to the line of action of the force
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Torque depend on:
Applied force
Distance from pivot (moment arm)
Angle of applied force
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Torque vs Force
Force causes linear motion
Tourq cause rotational motion
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Torque equation
τ = r x F
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When is there 0 torque
Force is applied at pivot
Force acts through the pivot
Moment arm = 0
