Mobile School Subjects
18. Friction and Other Resistance Forces
18.01. Introduction to Friction
18.02. Physical Quantities That Affect the Force of Friction
18.03. Friction as a Mutual Interaction Between Surfaces
18.04. Simple Methods for Reducing Friction
18.05. Understanding Lubricants
18.06. Resistance Caused by the Environment
18.07. Useful Friction
18.08. Interactive Presentation
18.09. Friction and Other Resistance Forces – Test