Exam-style question
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A material has a tensile stress of 200 MPa and a tensile strain of 0.01. What is the Young modulus of the material?.
- A.20000 MPa
- B.2000 MPa
- C.200 MPa
- D.20 MPa
Model answer
What a good answer should say
- 20000 MPa.
- the correct option
Explanation
Why this works
The correct answer is 20000 MPa. This supports Calculate Young modulus from stress and strain.
in The Young modulus because it uses the required mechanics relationship directly. The other options are less suitable because they confuse a different force, motion, energy, momentum, or materials concept.
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