# Ch 7: Rotational Motion in Physics

View video lessons and learn about the characteristics of rotational motion in physics. The self-assessment quizzes following each lesson can help you measure your understanding of these learning materials.

## Rotational Motion in Physics - Chapter Summary and Learning Objectives

In this series of video lessons, an experienced instructor will introduce you to the concept of rotational motion as it relates to physics. You'll learn the difference between objects in rotational motion and translational motion, and you'll also find out how to calculate this motion, both theoretically and practically. Related concepts covered in this chapter include the Big 5 equations in physics as well as topics in torque, kinetic energy, rolling motion and momentum. In these lessons, you'll learn things like:

• Types of motion
• How to observe, describe and measure changes in rotational motion
• Kinds of momentum
• How to solve equations and word problems

Video Objectives
Differences Between Translational and Rotational Motion Understand what distinguishes translational from rotational motion.
Rotational Kinematics: Definition and Equations Develop kinematic equations to measure rotational motion.
Five Kinematics Qualities and the Big 5 Equations Explain how the five kinematic qualities relate to the Big 5 equations
Rotational Dynamics and Torque Discuss the relationship between rotational dynamics and torque.
Rotational Inertia and Change of Speed Describe how the rotational speed of an object is affected by its rotational inertia.
Kinetic Energy of Rotation Compare and contrast the kinetic energy and change in potential energy of a rotating disk and a falling mass.
Rolling Motion and the Moment of Inertia Compare the observed vs. the theoretical moment of inertia for round objects in motion on an incline; use the conservation of energy principles and your knowledge of rotational motion.
Work & Power in Rotational Motion Calculate an object's kinetic energy, power, and work using formulas.
Angular Momentum vs. Linear Momentum Describe the difference between angular and linear momentum.
Conservation of Angular Momentum Use the law of conservation of angular momentum.
Equilibrium: Translational and Rotational State the characteristics of an object in equilibrium; determine the forces acting on the object that put it into translational and rotational equilibrium.

Final Exam
Chapter Exam

### Earning College Credit

Did you know… We have over 95 college courses that prepare you to earn credit by exam that is accepted by over 2,000 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.