Strain Energy: Definition & Calculation

Instructions:

Choose an answer and hit 'next'. You will receive your score and answers at the end.

question 1 of 3

A 600 N weight is hanging from the end of a cable with a total volume of 0.5 m3, causing a stress of 20,000 N/m2 in the cable. If the Young's modulus of the cable is 36,000 N/m2, how much strain energy is stored in the cable?

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1. Energy stored in a deformable object when a force is applied to it is known as _____.

2. A force of 15,000 N applied to a metal rod and it gets 0.01 m shorter as a result. How much strain energy is stored in the rod?

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About This Quiz & Worksheet

Take this multiple-choice quiz and discover how much you know about strain energy. Important topics include how to calculate the strain energy and the term for energy stored in a deformable object when a force is applied to it.

Quiz & Worksheet Goals

Test your understanding of the following:

  • Stored strain energy when you know the force applied and change in length of a rod
  • Ratio of stress to strain for a material
  • Strain energy in a cable when you know its stress, strain and volume

Skills Practiced

  • Problem solving - use acquired knowledge to solve strain energy practice problems
  • Information recall - access the knowledge you've gained regarding the energy stored when a force is applied to a rod and its length is changed
  • Knowledge application - use your knowledge to answer questions about energy in a cable when you know its stress, strain and volume

Additional Learning

More information on the storage of energy is available in the lesson entitled Strain Energy: Definition & Calculation. These topics will be discussed:

  • Energy that's transferred into kinetic energy
  • Definition of the stress of an object
  • SI units for length and force
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