Explore the fascinating world of gravity and planetary motion in this comprehensive 30-minute physics lesson. Delve into the universal equation for gravity and discover a new equation for gravitational potential energy beyond Earth's surface. Learn how to derive the escape speed formula for projectiles leaving a planet. Solve challenging problems comparing weights on Earth's surface versus in high orbit, and calculate speeds for stable satellite orbits and planetary escape. Gain a deep understanding of Kepler's Laws of Planetary Motion, including a detailed derivation of Kepler's Third Law. Apply your knowledge to real-world scenarios, such as determining Earth's orbital period. Perfect for students and enthusiasts seeking to expand their understanding of gravitational physics and celestial mechanics.