Exam-style question
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If a material has a Young modulus of 150 GPa and experiences a tensile strain of 0.005, what is the tensile stress?.
- A.750 MPa
- B.7500 MPa
- C.1500 MPa
- D.150 MPa
Model answer
What a good answer should say
- 750 MPa.
- the correct option
Explanation
Why this works
The correct answer is 750 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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