| A | B |
|---|
| Torque | Force multiplied by moment arm |
| Moment arm | Perpendicular distance from point of force application to the pivot point |
| Counterclockwise applied force | Creates positive torque |
| Clockwise applied force | Creates negative torque |
| Angular momentum | Moment of inertia multiplied by angular velocity |
| Net sum of torques = 0 | Equilibrium condition |
| Conservation of angular momentum | Moment of inertia multiplied by angular velocity = constant |
| More effective point of force application to cause torque | Far from the axis of rotation |
| Less effective point of force application to cause torque | Close to the axis of rotation |
| Force oriented radial to the axis of rotation | Will not cause torque |
| Vector cross product | AB sin theta, yields vector |
| Vector dot product | AB cos theta, yields scalar |
| Period | Reciprocal of frequency |
| Moment arm for a circular pulley | Radius of the pulley |
