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( Torque)
A torque (t) in physics is a pseudovector that measures the tendency of a force to rotate an object about some axis[1] (or fulcrum or pivot). Just as a force is a push or a pull, a torque can be thought of as a twist. The symbol for torque is t, the Greek letter tau. Torque is also called moment or moment of force. This should not be confused with the various other definitions of "moment" in physics. In the context of mechanical engineering, the terms "moment" and "torque" are not necessarily interchangeable; rather, one or the other may be preferred in a specific context. For example, "torque" is usually used to describe a rotational force down a shaft, for example a turning screw-driver, whereas "moment" is more often used to describe a bending force on a beam.[citation needed] The magnitude of torque depends on three quantities First, the force applied; second, the length of the lever arm[2] connecting the axis to the point of force application; and third, the angle between the two. In symbols where
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