Explore the fundamental concepts of elastic and inelastic collisions in this comprehensive physics lesson. Dive into the differences between these collision types, examining real-world examples ranging from asteroid impacts to subatomic particle interactions. Learn how to apply conservation of momentum and energy principles to solve collision problems, including toy train and pool ball scenarios. Gain insights into related concepts such as center of mass and inertia. Benefit from practical exercises, expert explanations, and a special appearance by cosmologist Dr. Katie Mack. Perfect for beginners, AP Physics 1 students, or anyone seeking a thorough review of collision physics.