What is the Difference Between Moment and Torque?

The main difference between torque and moment lies in their definitions and applications. Here are the key differences between the two:

• Torque is the measurement of the turning force of an object, which causes an object to rotate about an axis. It is dynamic in nature and produces angular acceleration. The symbol for torque is τ, and its SI unit is the newton-meter (N-m).
• Moment is the measurement of the perpendicular distance from the point of rotation to the force's line of action. It is static in nature and does not produce angular acceleration. The symbol for the moment is M, and its SI unit is also the newton-meter (N-m).

In summary, torque is a force that causes an object to rotate, while the moment is a measure of the tendency of a force to cause a body to rotate about a specific point or axis. Torque is a dynamic force used where there is an availability of a pivot and rotation, while the moment is a static force produced by any lateral force and used in non-rotational events.

Comparative Table: Moment vs Torque

Here is a table highlighting the differences between moment and torque:

In summary, torque is the force that causes an object to rotate about its own axis, while moment is the tendency of a body to rotate about a specific point or axis. Torque produces angular acceleration, whereas moment does not.