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Physics - Rotational Motion 3 - Energy and Momentum - AP
Rating: 4.7 out of 5(7 ratings)
134 students

Physics - Rotational Motion 3 - Energy and Momentum - AP

Master rotational energy, rolling motion, angular momentum, and conservation in algebra based physics
Created byCorey Mousseau
Last updated 6/2026
English
English [Auto],

What you'll learn

  • This Rotational Motion course will specifically focus on Rotational Kinetic Energy and Angular Momentum.

Course content

6 sections • 23 lectures • 2h 34m total length

  • Rotational Energy and Angular Momentum Workbook0:10
  • Physics Course Online Course Map
  • 1 - Rotational Motion - Introduction to Energy8:35

    Explore how torque drives rotational motion and converts work into kinetic energy, linking angular displacement to linear distance and introducing the rotational kinetic energy formula 1/2 I ω^2.

  • 2 - Rotational Kinetic Energy Example10:00

    Examine a hoop rotating with initial omega 2.5 rad/s, compute initial and final kinetic energy using I=MR^2, apply 2.7 J of work to raise KE to 3.09 J.

  • 3 - Rolling Without Slipping Part 111:49

    Explore rolling without slipping across surfaces, analyzing how rotational and translational kinetic energy partition, the role of friction, and energy loss from slipping.

  • 4 - Rolling Without Slipping Part 210:57

    Rolling without slipping uses friction to drive rotation without energy loss; total energy is translational plus rotational, with v_cm = omega r, and for a hoop these parts are equal.

Requirements

  • You should have already completed prior physics topics as well as the prior to courses in this series, Rotational Kinematics and Rotational Dynamics

Description

This course is one of several Mousseau Physics courses designed for AP Physics, introductory college physics, and advanced high school physics. In this course we focus on rotational energy and angular momentum. Students will study rotational kinetic energy, rolling motion, work and power in rotational systems, angular momentum, conservation of angular momentum, and the relationship between rotational and linear forms of energy and momentum.


The videos and resources include clear lectures, diagrams, and worked out example problems. Students will practice identifying when rotational energy matters, separating translational and rotational energy, using conservation laws, and interpreting what angular momentum means physically. The course helps students connect rotational mechanics to the energy and momentum tools they already use in linear mechanics.


This course is a strong fit for AP Physics 1 students, AP Physics C Mechanics students who want algebra based reinforcement, and introductory college physics students. It does not require calculus. Students who have worked through linear energy and momentum will find many familiar ideas here, but with the added challenge of rotation and rolling motion.


By the end of the course, students should be more confident solving rolling motion and angular momentum problems, explaining conservation of angular momentum, recognizing how rotational systems store and transfer energy, and connecting rotational mechanics to broader conservation-law reasoning.


Students can work straight through the course as a full unit or use individual lessons as targeted support alongside a class. The videos are built to be paused, rewound, and practiced with pencil and paper, so the course works well for homework help, test review, exam preparation, or rebuilding a topic that did not fully click the first time.

Who this course is for:

  • Any student enrolled in High School or AP Physics as well as any introductory College Physics Student.

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