What Is the Difference Between Torque and Moment in Physics?

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Torque and moment are often used interchangeably, but torque specifically refers to rotational effects involving twisting forces. In the discussed scenario, the force P generates both a moment about the z axis (bending moment) and a torque about the x axis (twisting moment). The distinction lies in the nature of the force's effect on the object; torque is associated with rotation around an axis. Understanding this difference is crucial for correctly analyzing mechanical systems. The conversation highlights the importance of context in defining these terms in physics.
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Homework Statement


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Homework Equations

The Attempt at a Solution


The book says that the force P causes a torque about the x axis. Why is it not a moment about x?
Why is it specifically a torque in this case?
 

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Torque and moment are synonymous in this case.
 
princejan7 said:

Homework Statement


Attached image

Homework Equations

The Attempt at a Solution


The book says that the force P causes a torque about the x axis. Why is it not a moment about x?
Why is it specifically a torque in this case?
The terms 'torque' and 'moment' are sometimes used interchangeably, although 'torque' often is used when twisting is involved. Here, the force P causes, at the base of the post support. both a moment about the z axis, Mz, and a moment about the x axis, Mx, where Mz bends the post (a bending moment) and Mx twists the post (a torque).
 

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