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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define stress and give its formula.
💡 Hint: Think about the relationship between force and area.
Question 2
Easy
What is the unit of strain?
💡 Hint: Recall that strain is a ratio.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does Hooke's Law state?
- Stress is not proportional to strain.
- Stress is proportional to strain.
- Stress depends on temperature only.
💡 Hint: Think about elastic deformation!
Question 2
Is strain a dimensionless quantity?
- True
- False
💡 Hint: Consider what it means when you divide two lengths.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A steel wire with a length of 10 m and cross-sectional area of 2 x 10^-6 m² is stretched by a force of 5000 N. Calculate the elongation of the wire if Young's modulus for steel is 2 x 10^11 N/m².
💡 Hint: Refer back to the relationship between elongation, force, and modulus.
Question 2
Considering a stress-strain curve, what would happen to a ductile material at the ultimate tensile strength if the load keeps increasing?
💡 Hint: Think about how ductility affects material failure.
Challenge and get performance evaluation