What term describes a twisting force?

The term that describes a twisting force is torque. Torque is a measure of how much a force acting on an object causes that object to rotate. It can be thought of as the rotational equivalent of linear force. When a force is applied at a distance from an axis of rotation, it generates torque, which influences how the object will turn about that axis.

For example, when you use a wrench to tighten or loosen a bolt, you apply a force at the end of the wrench handle. The length of the handle from the pivot point (the bolt) to where you apply the force creates torque, allowing you to turn the bolt.

Power refers to the rate at which work is done or energy is transferred, and energy is a broader concept that encompasses the ability to do work. Friction is a force that opposes motion between two surfaces in contact. Each of these terms relates to dynamics and mechanics, but they do not specifically describe a twisting force like torque does.