Forces and Elasticity

• What is the relationship between extension and force in a stretched spring?

  Extension is directly proportional to force
• What is the equation that represents the relationship between force and extension?

  $F =$$ke$
• What does the variable F represent in the equation $F =$$ke$?


  Force in Newtons (N)
• What does the variable k represent in the equation $F =$$ke$?


  Spring constant in N/m
• What does the variable e represent in the equation $F =$$ke$?


  Extension in meters (m)
• How does the spring constant relate to the stiffness of a spring?

  A stiffer spring has a larger spring constant
• What does the equation $F =$$ke$ also apply to besides extension?


  It applies to compression of a spring
• What is the limit of proportionality in the context of force and extension?

  It is the maximum force for linear extension
• What happens to the force-extension graph when the elastic limit is reached?

  The graph curves and proportionality ends
• What are the key concepts related to forces and elasticity?

  • Extension is proportional to force
  • Equation: $F =$$ke$
  • Spring constant depends on material
  • Limit of proportionality exists
  • Graph curves after elastic limit
• What are the three types of deformation mentioned?

  Stretching, compressing, bending
• What happens when a force is applied to an object?

  It may stretch, compress, or bend
• How many forces are needed to cause deformation in an object?

  More than one force
• What does applying a force to an object do to its energy?

  Transfers energy to elastic potential energy store
• What characterizes an object that is elastically deformed?

  It returns to its original shape and length
• What are objects that can be elastically deformed called?

  Elastic objects
• Give an example of an elastic object.

  A spring
• What defines inelastic deformation?

  Does not return to original shape and length
• What happens to an object that has been inelastically deformed?

  It does not return to its original shape
• What is the difference between elastic and inelastic deformation?

  • Elastic deformation: returns to original shape
  • Inelastic deformation: does not return to original shape