Gravitational Potential Energy: Conservation and Examples

This lecture covers the concept of gravitational potential energy, emphasizing its conservation in isolated systems. It explores the work done by external forces, the energy exchange between a system and its environment, and examples such as a sliding block on a table. The lecture also delves into the calculation of energy and the relationship between kinetic and potential energy. Additionally, it discusses the concept of conservative forces and gravitational potential energy, illustrating how to calculate the gravitational potential energy near the Earth's surface.