Elasticity_ Stress_ and Strain MCQs for Competitive Exams

MCQS

Elasticity_ Stress_ and Strain MCQs for Competitive Exams

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93 MCQs Page 4

Topic Notes: Elasticity_ Stress_ and Strain

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Elasticity_ Stress_ and Strain MCQs in Physics are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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31
Why is steel considered more elastic than rubber in the context of physics?
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32
What is the SI unit for strain?
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33
A force of 100 N is applied to a wire, resulting in an extension of 5 mm. What is the elastic potential energy stored in the wire?
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34
Which mathematical formula is used to calculate the stress experienced by a material?
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35
Within which range of the stress-strain curve is Hooke's Law considered valid?
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36
What defines a perfectly plastic body in the context of material deformation?
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37
How is stress classified in terms of its mathematical nature?
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38
Which of the following mathematical expressions represents Hooke’s Law?
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39
Evaluate the following statement and its reason: (A) Solids are more elastic than gases. (R) Gases are more compressible than solids for a given applied stress.
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40
Which physical principle governs the operation of a spring balance?
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