Forces and Elasticity

• The extension of an elastic object is directly proportional to the force applied, provided that the limit of proportionality is not exceeded.
• An inelastic deformation, also known as a plastic deformation, is a deformation which results in the object being permanently stretched and the object doesn’t return to its original shape when the force is removed.
• The equation relating force, spring constant and extension is Force = Spring Constant x Extension.
• Elastic potential energy is the type of energy stored in a spring when it is stretched.
• Compression can be replaced with extension in the equation for spring force.