Explore the principles of buoyancy and Archimedes' Principle in this comprehensive 31-minute physics lesson. Dive into the derivation of the buoyant force formula, understand why objects float or sink based on their density, and learn to calculate the percentage of submerged volume for floating objects. Solve a variety of practical problems, including determining buoyant force, calculating normal force and apparent weight for submerged objects, and finding object density from underwater measurements. Master these fundamental concepts through clear explanations and step-by-step problem-solving techniques, essential for understanding fluid mechanics and its real-world applications.