
Explore the basics of rotational motion, address why it feels overwhelming, and outline core ideas like angular speed, angular acceleration, motion changes, energy, and momentum built on linear physics.
Explore rotational motion from a conceptual base, using a frictionless platform to distinguish translating from rotating motion, and connect angular speed, angular acceleration, inertia, and energy transfer via work.
Compute rotational speed by relating angular displacement to time, introduce omega as angular speed, and connect angular motion to linear speed via arc length and average velocity.
Link angular displacement theta to arc length L via theta = L/R, recognize radians as unit, then relate angular speed to period and frequency with omega = 2 pi f.
Explore how uniformly accelerated rotational motion mirrors linear motion by deriving and applying the key equations for angular velocity, angular acceleration, and angular displacement.
Connect linear and rotational motion by deriving centripetal acceleration a_c = ω^2 r from v = ω r, and relate arc length and speed to radius with bridge equations.
Organize rotational kinematics into three columns—linear, rotational, and bridge—linking angular displacement to linear distance, angular velocity to linear speed, and centripetal acceleration.
Explore rotational kinematics through multiple choice problems, converting rpm to rad/s, calculating angular speed, theta in degrees, time for a revolution, and average angular acceleration.
Solve rotational kinetics problems using a worksheet approach that helps you recognize knowns, select the proper equations, and compute tangential and centripetal accelerations, plus changes in angular velocity and displacement.
This course is one of several Mousseau Physics courses designed for students in AP Physics, introductory college physics, and advanced high school physics. In this course we focus on rotational kinematics, which describes rotational motion without yet focusing on the causes of that motion. Students will study angular position, angular displacement, angular velocity, angular acceleration, rotational motion graphs, and the connections between linear and angular quantities.
The videos and resources include clear lectures, diagrams, and worked out example problems. Students will practice translating between rotational and linear descriptions, choosing the correct kinematics equation, keeping track of radians, and interpreting what angular quantities mean physically. The course is designed to help students see that rotational motion is not a completely new subject, but a parallel structure that connects closely to linear kinematics.
This course is a strong fit for AP Physics 1 students, AP Physics C Mechanics students who want algebra based review, and introductory college physics students. It does not require calculus. Students who have already studied linear kinematics will be able to use those ideas as a bridge into angular motion.
By the end of the course, students should be more confident describing rotational motion, solving angular kinematics problems, interpreting rotational graphs, and preparing for later rotational topics such as torque, rotational dynamics, rotational energy, and angular momentum.
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.