Ch 6: Rotational Motion Principles

About This Chapter

This chapter consists of short, fun video lessons that highlight rotation motion principles as well as rotational kinematics. Build your knowledge of these topics in order to get ahead in your physics studies.

Rotation Motion Principles - Chapter Summary

When you watch the online videos in this chapter on rotational motion principles, you'll get information about rotational quantities and variables as well as angular velocity and acceleration. Explore the momentum and inertia of objects, and learn to understand Newton's first and second laws. You'll also have opportunities to practice solving equations that are related to inertia and momentum. Once you've viewed the video lessons, you could be able to:

  • Examine the differences between translational and rotational motion
  • Solve problems with rotational kinematics equations and torque
  • Identify five kinematics variables
  • Define rotational inertia, kinetic energy of rotation and the moment of inertia
  • Explore work and power in physics
  • Learn how to apply the conservation of momentum
  • Distinguish between translational and rotational equilibrium

Experienced teachers outline the fundamentals of rotation motion principles throughout these online video lessons. Watch and take notes in your spare time via your mobile device or desktop computer. Written transcripts reflect the lessons, and video tags allow you to navigate them more quickly. The dashboard area of the lessons contains your recent activities along with course links and quizzes. You can also submit questions here by using the ask-an-expert feature.

11 Lessons in Chapter 6: Rotational Motion Principles
Test your knowledge with a 30-question chapter practice test
Differences Between Translational & Rotational Motion

1. Differences Between Translational & Rotational Motion

After watching this lesson, you'll be able to explain the difference between translational and rotational motion, explain how translational quantities are replaced by rotational ones in physics and apply Newton's First Law to rotation. A short quiz follows.

Rotational Kinematics: Definition & Equations

2. 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.

Five Kinematics Quantities & the Big 5 Equations

3. 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.

Torque: Concept, Equation & Example

4. Torque: Concept, Equation & Example

After watching this lesson, you will be able to explain what torque is conceptually and mathematically and use both the equation and Newton's First Law for rotation to solve problems involving torque. A short quiz will follow.

Rotational Inertia & Change of Speed

5. 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.

Kinetic Energy of Rotation

6. Kinetic Energy of Rotation

After watching this lesson, you will be able to explain what kinetic energy of rotation is, provide the equation to calculate it, and solve simple kinetic energy of rotation problems. A short quiz will follow.

Rolling Motion & the Moment of Inertia

7. 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.

Work & Power in Rotational Motion

8. Work & Power in Rotational Motion

After watching this lesson, you will be able to explain what work and power are in the context of rotational motion and use equations to solve problems involving rotational work and power. A short quiz will follow.

Angular Momentum vs. Linear Momentum

9. Angular Momentum vs. Linear Momentum

After watching this lesson, you will be able to explain the difference between angular and linear momentum and solve problems using angular momentum equations. A short quiz will follow.

Conservation of Angular Momentum

10. 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.

Equilibrium: Translational & Rotational

11. 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.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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