Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. There are several types of friction ...
Until now in physics, you've probably been ignoring friction to make things simpler. Now, it's time to include this very real force and see what happens.
Physics4Kids.com! This tutorial introduces the physics of friction. Other sections include modern physics, heat, electricity, magnetism, and light.
Frictional resistance to the relative motion of two solid objects is usually proportional to the force which presses the surfaces together as well as the roughness of ...
Friction definition, surface resistance to relative motion, as of a body sliding or rolling. See more.
Learn how friction causes a material to heat up and melt. What happens on an atomic level when you rub two objects together?
An interactive track on which children can explore the effect of friction with different track surfaces.
Etymology. From Middle French friction and directly from Latin frictionem, nom. frictio (“a rubbing, rubbing down”). Pronunciation. IPA: /ˈfɹɪkʃən̩/ ...