The moment of force (also called torque) and work done by a force both have the same unit, which is the Newton-meter (Nm). However, they represent different concepts.
Moment of Force (Torque):
- It is the measure of the rotational effect of a force applied at a distance from a pivot point.
- It is calculated as the product of the force and the distance from the pivot (Moment = Force × Distance).
- Its direction can be clockwise or counterclockwise.
Work Done by a Force:
- It measures the energy transferred when a force moves an object over a distance in the direction of the force.
- It is calculated as the product of the force and the distance moved in the direction of the force (Work = Force × Distance).
- It always has a direction associated with the movement of the object.