Forced and Elasticity

• What can forces change in an object?

  Shape (deformation)
• What happens to an object when forces compress or stretch it?

  It undergoes deformation
• How many forces must act on an object for deformation to occur?

  At least two forces
• What would happen if only one force acted on an object?

  The object would simply move
• What are the two types of deformation?

  • Elastic deformation
  • Inelastic deformation
• What occurs during elastic deformation?

  Energy is stored and can be released
• What happens to energy during inelastic deformation?

  Energy is lost and cannot be recovered
• What is the result of inelastic deformation?

  The object is permanently deformed
• How is the extension of an elastic object related to the force applied?

  It is directly proportional to the force
• What is the formula for force in relation to spring constant and extension?

  Force = spring constant × extension
• What is the unit of force in the formula?

  Newtons (N)
• What does the spring constant represent?

  The stiffness of the spring
• What is the equation for elastic potential energy?

  Elastic potential energy = 0.5 × spring constant × extension²
• How can the work done on a spring be calculated?

  Using the elastic potential energy equation
• What is the relationship between work done on a spring and elastic potential energy?

  They are equal when the spring is not deformed
• What is the value of the spring constant in the equation?

  It is denoted as k
• What does the variable x represent in the elastic potential energy equation?

  The extension of the spring
• What is the factor of the elastic potential energy equation?

  0.5
• What does the term "extension" refer to in the context of springs?

  The amount a spring is stretched or compressed
• How does the work done on a spring relate to its deformation?

  It is equal to the elastic potential energy stored