Exam-style question
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A wire has a tensile stress of 200 N/m² and a tensile strain of 0.01. Calculate the Young modulus of the material.
Model answer
What a good answer should say
- The Young modulus of the material is 20000 N/m².
Explanation
Why this works
This question tests the ability to apply the formula for Young modulus, which is the ratio of tensile stress to tensile strain. The strong answer demonstrates understanding of the relationship between stress and strain in materials.
Common mistake
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