Exam-style question
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What does the slope of a force-extension graph represent?.
- A.The elastic limit of the material
- B.The stiffness of the material
- C.The total energy stored in the material
- D.The maximum extension of the material
Model answer
What a good answer should say
- The stiffness of the material
Explanation
Why this works
The slope of a force-extension graph indicates the stiffness of the material, which is a measure of how much force is needed to extend it. This relates directly to Hooke's law, where the force applied is proportional to the extension within the limit of proportionality.
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