| A measure of the rotational effect of the force, calculated as the moment of force multiplied by the length of the lever arm. |
The product of the force and the perpendicular distance from the line of action of the force to a reference point. |
| A pair of forces equal in magnitude, opposite in direction, and parallel but not collinear, causing rotation without translation. |
The perpendicular distance between the line of action of the force and the axis of rotation. |
| The state in which the sum of clockwise moments is equal to the sum of counterclockwise moments around a point. |
Same as lever arm, the distance from the axis of rotation to the line of action of a force. |
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The point about which moments are calculated, often chosen for convenience. |