Exam-style question
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If a force of 200 N is applied to an area of 0.5 m², what is the tensile stress?.
- A.400 N/m²
- B.100 N/m²
- C.200 N/m²
- D.300 N/m²
Model answer
What a good answer should say
- 400 N/m².
- the correct option
Explanation
Why this works
The correct answer is 400 N/m². This supports Define tensile stress and tensile 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.
Common mistake
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