Torque, moment, or moment of force (see the
terminology below) is rotational
Loosely speaking, torque is a measure of the turning force on an object such as a bolt or a
The magnitude of torque depends on three quantities: the force applied, the length of the lever arm  connecting the axis to the point of force application, and the angle between the force vector and the lever arm. In symbols:
This article follows US physics terminology in its use of the word torque.
 In the UK and in US
Torque is defined mathematically as the rate of change of
This article follows the US physics terminology by calling all moments by the term torque, whether or not they cause the angular momentum of an object to change.