Gravity, Normal Force, and Friction - Introduction to Free Body Diagrams in General Physics

Explore fundamental concepts in General Physics 1 through this comprehensive 51-minute video lesson. Delve into the forces of gravity, normal force, and friction, while learning to create and interpret free body diagrams. Begin with an introduction to the universal force of gravity formula and its simplified version for objects near Earth's surface. Solve gravity practice problems using both equations. Examine contact forces, including normal force and friction (both static and kinetic), understanding their definitions and relationships. Master the art of drawing free body diagrams through classic physics normal force elevator problems, applying Newton's first and second laws in one dimension. Conclude by tackling more complex scenarios involving two-dimensional free body diagrams, including kinetic friction problems, and setting up equations using Newton's laws in multiple dimensions.

Lesson Introduction
Gravity and Weight
Gravity Practice Problems
Normal Force
Static Friction and Kinetic Friction
Normal Force Elevator Practice Problems - How to Draw Free Body Diagrams and Net Force
Friction Practice Problems - Free Body Diagrams in Two Dimensions