cognito

• F = ke


  Equation linking force applied to an object, extension, and spring constant
• Spring constant (k)


  Measure of how firm or elastic an object is. Lower spring constant means more elastic, higher spring constant means more stiff.
• Elastic potential energy = 1/2 ke^2


  Equation for the elastic potential energy stored in a stretched object
• Calculating spring constant


  Given force and extension, use F = ke to solve for k
• Calculating elastic potential energy


  Use 1/2 ke^2 equation, plugging in known values for k and extension
• Force-extension graph


  Gradient of straight line = spring constant, area under curve = elastic potential energy
• Elastic limit/Limit of proportionality


  Point where object stops obeying Hooke's law