elastic potential energy

• What is elastic potential energy?

  Energy stored in a stretched spring
• What do a windup toy and a clock have in common?

  Both use energy stored in a spring
• What happens when a force is applied to a spring?

  The spring stretches and stores energy
• What is the symbol for extension in a spring?

  Lowercase e
• What does a straight line graph of extension versus force indicate?

  Extension is directly proportional to force
• What occurs when a spring is stretched beyond the limit of proportionality?

  The spring will not return to its original length
• What is the equation for elastic potential energy?

  U = 0.5 * k * e^2
• What must the extension be in for the elastic potential energy equation?

  Extension must be in meters