Exam-style question
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Which of the following best describes elastic deformation?.
- A.The material returns to its original shape after the force is removed.
- B.The material permanently changes shape after the force is applied.
- C.The material breaks under stress.
- D.The material flows like a liquid when stressed.
Model answer
What a good answer should say
- The material returns to its original shape after the force is removed.
Explanation
Why this works
Elastic deformation is characterized by the ability of a material to return to its original shape once the applied force is removed. This property is essential in applications where materials must withstand forces without permanent deformation.
In contrast, plastic deformation leads to permanent changes in shape, which is not the case for elastic deformation.
Common mistake
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