Angular momentum

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/angular-momentum

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is angular momentum?Angular momentum is the rotational version of linear momentum. It tells us how much spinning a moving object has. It is calculated using the cross product of position and momentum, or as I times ω for a rigid body.
2. Why do planets stay in orbit instead of falling into the Sun?Because angular momentum is conserved. As the planet moves closer, its speed increases, keeping the total angular momentum the same, so it keeps orbiting.

Moment of Inertia (I): A scalar quantity representing an object's resistance to angular acceleration about a specific axis.
Angular Velocity (ω): The rate of change of angular displacement, a vector quantity indicating speed and direction of rotation.
Torque (τ): The rotational equivalent of force; a force applied at a distance from an axis, causing angular acceleration.