What does torque measure?

Torque measures the turning force around an axis, which is a critical concept in mechanics and engineering. It is the result of a force applied at a distance from a pivot point or axis, causing an object to rotate. The effectiveness of this force in creating rotation is influenced by both the magnitude of the force and the distance from the pivot point, often termed the moment arm.

In practical applications, torque is crucial in understanding how engines operate, how gear systems function, and how various machinery can exert rotational forces. This measurement is commonly expressed in units like Newton-meters (N·m) or foot-pounds (ft·lb), depending on the system of units being used.

Understanding torque is essential for engineers and technicians as it relates directly to designing equipment and ensuring proper functionality in mechanical systems. It helps predict how objects will move and assists in making calculations for load, speed, and the necessary force to accomplish tasks in power engineering.