Elasticity

• Change of shape

  Bending, stretching or compressing
• Deformation


  Change in shape
• Elastic deformation


  An object returns to its original shape after a force is exerted
• Inelastic deformation


  An object is permanently changed and won't return to its original shape
• Force-extension graphs are used to represent the relationship between force and extension
• Inelastic deformation


  Is when an object is permenantly changed and can’t return to its original shape
• Elastic limit


  The furthest point an object can be stretched while being able to return to its previous shape
• Elastic potential energy


  Energy stored in a spring when work is done to extend or compress it
• Hooke's Law

  Describes the extension of an elastic object (Spring) force = Spring Constant x Extension
• Spring Constant


  A measure of the stiffness of a spring