Torque () is force that causes an object to rotate around an axis and is measured in joules (). Formally, torque is force () times distance (), or . Though torque's definition is very similar to work and the units of measure are the same, it is not work because work by definition causes displacement which is linear whereas torque by definition causes rotation.
By convention, Torque is negative when the rotation is clockwise and positive when rotation is counter-clockwise.
Resources to Learn About Torque
Deeper Knowledge on Torque
Learn about gears and cogs
Broader Topics Related to Torque
The basics of angular motion
The fundamental nature and properties of matter, energy, and motion