What is torque a measure of?

Torque is defined as the rotational force applied to an object. It represents the effectiveness of a force to cause rotation around an axis or pivot point. When a force is applied at a distance from the axis of rotation, it results in a turning effect, or torque. This measurement takes into account both the magnitude of the applied force and the distance from the pivot point, often referred to as the moment arm. The unit of torque is typically expressed in Newton-meters (Nm) or foot-pounds (ft-lbs).

This concept is vital in various applications, such as in engine performance, machinery, and even in everyday tasks like using a wrench. Understanding torque helps engineers and mechanics ensure that machines operate effectively and efficiently by applying the correct amount of rotational force to achieve the desired motion.