# Ch 10: Overview of Rotational Motion

### About This Chapter

## Overview of Rotational Motion - Chapter Summary

Learn all about the basics of rotational motion using the engaging lessons in this comprehensive overview. This chapter can help you discover or improve your current understanding of rotational kinematics, rolling motion, equilibrium and more. Check your knowledge of the lessons you review by taking multiple-choice quizzes. Any questions that arise while studying this chapter can be sent to our experts. After completing the lessons, you will have the knowledge to:

- Differentiate between rotational and transitional motion
- Define rotational kinematics
- Detail the basics of rotational dynamics and torque
- Explain the relationship between rotational inertia and the change of speed
- Describe the kinetic energy of rotation
- Share the basics of rolling motion and the moment of inertia
- Discuss the conservation of angular momentum
- Provide details about translational and rotational equilibrium

### 1. Radian Measure: Definition & Formula

In mathematics, the radian is the standard unit of angular measure. This lesson will define radian and work through some problems involving radians. The lesson will end with a quiz.

### 2. Uniform Circular Motion: Definition & Mathematics

After watching this lesson, you will be able to explain what uniform circular motion is, in terms of both acceleration and forces. You will also be able to use equations for centripetal force and acceleration to solve problems. A short quiz will follow.

### 3. Rotational Kinematics: Definition & Equations

After watching this lesson, you should be able to explain what kinematics is, give a rotational variable that corresponds to each linear kinematic variable, and solve problems using rotational kinematics equations. A short quiz will follow.

### 4. Five Kinematics Quantities & the Big 5 Equations

After watching this lesson, you will be able to list the five kinematics variables in rotational motion and use the five equations of constant acceleration to solve problems involving rotational motion. A short quiz will follow.

### 5. Practice Applying Circular Motion Formulas

We can calculate velocity, acceleration, and force when traveling in a circle. In this lesson, we'll look at some sample problems using the formulas to calculate velocity, acceleration, and force of an object traveling in a circle.

### 6. What is Torque? - Definition, Equation & Calculation

You've probably heard of torque before, maybe while discussing cars. Now learn what it really is, and what it has to do with rotational equilibrium. Then, work through an example problem that combines the two.

### 7. Equilibrium: Translational & Rotational

Learn about the requirements for an object to be under translational or rotational equilibrium. Then work through a couple example problems that show how we can use translational and rotational equilibrium to find the forces acting on an object.

### 8. Rolling Motion & the Moment of Inertia

After watching this lesson, you should be able to figure out the moment of inertia of an object as it rolls down a ramp and compare it to a theoretical value. A short quiz will follow.

### 9. Rotational Inertia & Change of Speed

After watching this lesson, you will be able to explain what rotational inertia is, describe how it makes it harder to change the speed of rotation, and solve rotational inertia problems. A short quiz will follow.

### 10. Calculating Angular Momentum: Definition, Formula & Examples

Angular momentum is sometimes a tough concept to grasp, but with the right understanding and formula, it can be a snap. Let's explore its key concepts and give you some examples to help you understand.

### 11. Practice Applying Rotational Motion Formulas

This lesson introduces the reader to rotational motion and gives examples of solving rotational motion problems such as calculating the angular velocity of an object, the rotational motion of a cylinder, and the angular kinetic energy of an object.

### 12. Conservation of Angular Momentum

After watching this video you will be able to explain what is meant by conservation of angular momentum. You will also be able to use this concept along with the equation to solve problems. A short quiz will follow.

### Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

### Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

### Other Chapters

Other chapters within the Physics 111: Physics I course

- Math Basics for Physics
- The Scientific Model
- Using Vectors in Physics
- Displacement, Velocity & Acceleration
- Understanding Kinematics in Physics
- Basics of Newton's Laws of Motion
- Newton's Law of Gravitation
- Understanding Work, Energy & Power
- Linear Momentum
- Overview of Oscillations in Physics
- Overview of Waves in Physics
- Overview of Sound in Physics
- Overview of Light in Physics
- Overview of Fluids in Physics
- Studying for Physics 111