Khan Academy
Khan Academy: Friction Review
Review the key concepts, equations, and skills for friction, including how to find the direction and magnitude of the friction force.
Other
Bscs: Forces and Motion Content Background Document
In this document, we will try to answer a fundamental question of physical science, "Why do things start to move, slow down, speed up, stop moving or change direction?" In answering these core questions we can develop concepts that can...
Other
Focus Physical Review: Friction of Molecules
This is an article published by the American Physical Society on friction in microscopic gears that results from the adhesion of molecules. A great exploration of this new obstacle in science.
Khan Academy
Khan Academy: Air and Fluid Resistance
This article on Khan Academy is about air and fluid resistance that is caused by friction.
Khan Academy
Khan Academy: What Is Newton's First Law?
Newton's First Law also called the law of inertia is the most important thing to realize about motion. This article offers more information on motion and explains solved problems involving Newton's First Law. Also included is a video...
Famous Scientists
Famous Scientists: Charles Augustin De Coulomb
A short biography about Charles Coulomb, known for developing Coulomb's law, the definition of the electrostatic force of attraction and repulsion.