Torque
Torque
Torque (pronounced: /tɔːrk/), also known as moment or moment of force, is a concept in Physics and Engineering that describes the rotational force applied on an object. The term originates from the Latin word torquere, meaning "to twist".
Definition
In simple terms, torque can be defined as the turning force that causes rotation. It is a vector quantity, meaning it has both direction and magnitude. The SI unit for torque is the Newton meter (N·m).
Calculation
The torque (τ) exerted by a force (F) on a lever arm with a moment arm (r) is given by the equation:
τ = r x F
Where:
- τ is the torque vector
- r is the moment arm vector
- F is the force vector
- x denotes the cross product
Applications
Torque is a fundamental concept in the fields of Mechanics, Engineering, and Physics. It is particularly important in the design and operation of machines such as engines, power tools, and vehicles. In medicine, understanding torque is essential for biomechanics and orthopedics, especially in the study of human movement and the design of medical devices such as prosthetics and orthotics.
Related Terms
External links
- Medical encyclopedia article on Torque
- Wikipedia's article - Torque
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