This study guide on circular motion covers key terms, centripetal force, linear vs. circular motion, precession, and equations. Includes four example problems with detailed solutions. The guide is available for download with free...

An exhaustive set of "lecture notes" on various topics in thermal physics (including thermal expansion). Explanations are well done and more interesting than most. Includes both a mathematical and conceptual treatment of topics. Humor,...

This is a glossary of the terms and definitions used in Chapter 8: Linear Momentum and Collisions from the AP Physics online text.

Reference material that reviews how objects rotate and can have linear momentum and angular momentum. Also, learn how the angular momentum of an object can change when torque is applied to an object over time.

A reference page that reviews two-dimensional collisions with key concepts, equations, and skills to understand center of mass motion.