Exam-style question
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In a force-extension graph, what does the area under the graph represent?.
- A.The work done on the material
- B.The tensile strength of the material
- C.The elastic limit of the material
- D.The energy lost due to plastic deformation
Model answer
What a good answer should say
- The work done on the material
Explanation
Why this works
The area under a force-extension graph represents the work done on the material as it is deformed. This is calculated as the integral of force with respect to extension, indicating the energy transferred to the material during the deformation process.
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