Why torque is moment of force & angular momentum is moment of momentum

In summary, torque is a measure of rotational force, while angular momentum is a measure of an object's rotational motion. Both are calculated by multiplying different factors, such as force and distance for torque, and angular velocity and moment of inertia for angular momentum. The terms moment of force and moment of momentum are used to emphasize the relationship to rotation around an axis.
  • #1
Aatreya Sarma
2
0
Why the torque is called moment of force and angular momentum is called moment of linear momentum ? Please explain.
 
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  • #2
It usually isn't...it's usually called the torque and the angular momentum. I have not come across any references that refer to them as moment of force and moment of linear momentum. Perhaps these are archaic terms?
 

1. What is torque?

Torque is a measure of the force that causes an object to rotate around an axis. It is calculated by multiplying the force applied to an object by the distance from the axis of rotation to the point where the force is applied.

2. How is torque related to moment of force?

Moment of force is another term for torque, and they are essentially the same concept. Torque is commonly used in physics, while moment of force is more commonly used in engineering.

3. What is angular momentum?

Angular momentum is a measure of an object's rotational motion. It is calculated by multiplying the angular velocity (how fast the object is rotating) by the moment of inertia (the object's resistance to change in rotation).

4. How is angular momentum related to moment of momentum?

Moment of momentum is another term for angular momentum, and they are essentially the same concept. Angular momentum is commonly used in physics, while moment of momentum is more commonly used in engineering.

5. Why is torque considered a moment of force and angular momentum a moment of momentum?

Torque and angular momentum are both considered moments because they are both measures of rotational motion. The terms "moment of force" and "moment of momentum" are used to emphasize the fact that these quantities are related to the moment (or turning effect) of a force or motion around an axis of rotation.

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