Universal Law of Gravity and Planetary Motion - General Physics Lesson 7.3

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.

Lesson Introduction
Reviewing Universal Gravity and the Force of Gravity Formula
Universal Gravitational Potential Energy
Escape Speed and Derivation of Escape Speed Formula
Weight on Earth vs Weight in Orbit Gravity Problem
How to Calculate the Speed for a Stable Orbit Problem
How to Calculate Escape Speed Problem
Kepler's Laws of Planetary Motion
Kepler's Third Law Derivation
How to Calculate the Period of Orbit of a Planet Problem