Intro to springs and Hookes law (video) | Khan Academy Discover the phenomena of springs and Hooke's Law Explore how force applied to a spring results in compression or elongation, and how this relationship is linear Uncover the concept of restorative force and how it counteracts applied force, keeping our spring in equilibrium
What is elastic potential energy? (article) | Khan Academy What about real elastic materials? In our article on Hooke's law and elasticity we discuss how real springs only obey Hooke's law over some particular range of applied force
Stress vs strain curve (video) | Khan Academy What happens if you stretch something beyond its elastic limits? In this video, we will explore the regions beyond the elastic limits We will take a steel rod and keep stressing it until it breaks We will draw a graph of stress vs strain and explore all the different regions of it
AP®︎ College Physics 1 - Khan Academy Forces arise from interactions between two objects or systems of objects Use free body diagrams and motion models from Unit 1 to analyze the effects of forces on systems Translate between different representations of forces and motion, and use models to analyze how interactions cause change Practice deriving equations from fundamental principles and use proportional reasoning to make