# What is angular momentum

#### Understand the Problem

The question is asking for the definition and understanding of the concept of angular momentum, which is a fundamental concept in physics related to rotational motion.

#### Answer

Angular momentum is the rotational analog of linear momentum, a conserved quantity defined by the moment of inertia times angular velocity.

Angular momentum is the rotational analog of linear momentum and is defined as the property of any rotating object given by its moment of inertia times its angular velocity. It is a conserved quantity in closed systems.

##### Answer for screen readers

Angular momentum is the rotational analog of linear momentum and is defined as the property of any rotating object given by its moment of inertia times its angular velocity. It is a conserved quantity in closed systems.

#### More Information

Angular momentum is important because it is conserved in closed systems, meaning it does not change over time if no external torques are applied. It plays a critical role in understanding rotational motion in physics.

#### Tips

A common mistake is to confuse linear momentum with angular momentum. Remember, linear momentum pertains to objects moving in a straight line, while angular momentum deals with rotating objects.

#### Sources

- Angular momentum - Wikipedia - en.wikipedia.org
- Angular Momentum - Definition, Units, Formula, Video, Right Hand ... - byjus.com
- Angular momentum | Definition, Examples, Unit, & Facts - Britannica - britannica.com

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