6.12 Conservation of angular momentum

Explore one of the most powerful principles in rotational dynamics: the conservation of angular momentum. This lesson explains why 𝐿1=𝐿2 when no external torque acts on a system, and how this law governs spinning bodies, collisions, and real-world phenomena. You’ll learn: The meaning of angular momentum and its conservation Worked examples with rotation and collision problems How astronauts, figure skaters, and particles demonstrate this principle Key IB Physics exam applications Clear visuals, concise explanations, and exam-ready examples make this video perfect for mastering rotational mechanics.