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Class 11 Physics — Chapter 9: Mechanical Properties of Solids Online Test

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Class 11 Physics: Mechanical Properties of Solids Online Test (Paper 1)

Welcome to Paper 1! This is your foundation to build confidence and get you ready to tackle the challenges ahead.

  • Total Questions: 20
  • Time Allotted: 30 minutes
  • Passing Score: 40%
  • Randomization: No
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

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1 / 20

1. A material initially stressed to shows a stress of after 100 s at constant strain. What is the relaxation time ?

2 / 20

2. A boiler tube operates under stress of at . If the creep rate follows Norton’s law , what happens if stress doubles?

3 / 20

3. In an S–N curve (stress vs. number of cycles), what does the horizontal region represent?

4 / 20

4. In which of the following processes is strain hardening most beneficial?

5 / 20

5. Plastic deformation is accompanied by which atomic process?

6 / 20

6. For submarine hull design, which modulus is most relevant?

7 / 20

7. A material has Young’s modulus and bulk modulus . Find Poisson’s ratio .

8 / 20

8. A wire of length , area , elongates by under a load of . Find Young’s modulus.

9 / 20

9. A wire of length and area is stretched with stress of . If , calculate elongation.

10 / 20

10. What type of deformation occurs in the yield region?

11 / 20

11. Which industrial test uses Hooke’s law principle to check stiffness of materials?

12 / 20

12. A copper wire of length and cross-sectional area is subjected to a tensile force of . If , what is the elongation?

13 / 20

13. Which graph best represents the equation ?

14 / 20

14. The stress–strain graph in Hooke’s law region is:

15 / 20

15. A wire of length and cross-sectional area elongates by under a force of . What is the stress and strain?

16 / 20

16. Plasticity in solids refers to:

17 / 20

17. Which property is most important for designing wires used in electrical transmission?

18 / 20

18. Which of the following is an example of a linear elastic material?

19 / 20

19. A wire of length and area is subjected to a tensile force of . If its elongation is , what is the Young’s modulus of the material?

20 / 20

20. A steel wire of length and radius is subjected to a tensile force of . If Young’s modulus of steel is , what is the elongation of the wire?

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Class 11 Physics: Mechanical Properties of Solids Online Test (Paper 2)

Welcome to Paper 2! You’ve mastered the basics, and now it’s time to test your understanding with a more challenging set of questions.

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  • Total Questions: 30
  • Time Allotted: 45 minutes
  • Passing Score: 50%
  • Randomization: Yes
  • Certificate: No
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 30

1. In linear elastic deformation, the stress-strain graph is:

2 / 30

2. Why is study of permanent deformation important in engineering?

3 / 30

3. In the equation , what does represent?

4 / 30

4. Which of the following describes the plastic region of the stress–strain curve?

5 / 30

5. What is plastic deformation?

6 / 30

6. The SI unit of all elastic moduli (Y, G, K) is:

7 / 30

7. Which application of plastic deformation is used in the creation of aluminum foils?

8 / 30

8. Elasticity plays a key role in which of the following phenomena?

9 / 30

9. A steel rod of length , area , and Young’s modulus is subjected to a tensile force of . Calculate energy stored per unit volume.

10 / 30

10. Which statement is true about yield point?

11 / 30

11. Which type of stress is produced when a wire is stretched by a force applied along its length?

12 / 30

12. Why is annealing done after cold working?

13 / 30

13. Which property decreases after annealing compared to strain hardening?

14 / 30

14. A wire of original length and diameter is stretched by under a load of . Calculate Young’s modulus.

15 / 30

15. Which of the following is correct about elastic region and yield point?

16 / 30

16. Which statement correctly compares ductile and brittle materials on a stress–strain curve?

17 / 30

17. A component at shows creep strain rate of . If operating temperature increases to , creep rate becomes . What is the ratio of creep rates?

18 / 30

18. Which property describes the resistance of a solid body to change in its shape or volume?

19 / 30

19. Which property is tested in tensile strength experiments?

20 / 30

20. Why is glass not preferred for making beams in construction?

21 / 30

21. Which modulus is related to compressibility of a material?

22 / 30

22. What does Hooke’s law state?

23 / 30

23. Which property of steel makes it ideal for building bridges and skyscrapers?

24 / 30

24. Which of the following examples follows Hooke’s law most closely?

25 / 30

25. In stress-strain behavior, where does plastic deformation start?

26 / 30

26. If a wire of length elongates by under a load of and cross-sectional area , find Young’s modulus.

27 / 30

27. Which material property is most important for aircraft components subjected to cyclic loading?

28 / 30

28. Why is titanium alloy used in bone implants?

29 / 30

29. In Searle’s experiment, why are two wires used (test wire and reference wire)?

30 / 30

30. Which property makes rubber suitable for making shock absorbers?

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Class 11 Physics: Mechanical Properties of Solids Online Test (Paper 3)

Welcome to Paper 3! You’ve warmed up—now it's time to step up your game and conquer the challenge with tougher questions!

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  • Total Questions: 50
  • Time Allotted: 75 minutes
  • Passing Score: 70%
  • Randomization: Yes
  • Certificate: Yes
  • Retake: Allowed
  • Price: 100% Free

Good luck! 👍

1 / 50

1. Which graph correctly represents linear elastic deformation?

2 / 50

2. Which of the following real-life examples obeys Hooke’s law most closely?

3 / 50

3. Which modulus of elasticity is most important for beams under bending loads?

4 / 50

4. Why does increasing applied stress accelerate creep rate?

5 / 50

5. Which of the following describes the plastic region of the stress–strain curve?

6 / 50

6. Which of the following graphs correctly represents Hooke’s law?

7 / 50

7. What type of deformation is observed in lead when subjected to small stress?

8 / 50

8. Which modulus is most relevant for describing elasticity in solids under torsion?

9 / 50

9. Which law governs linear elastic deformation?

10 / 50

10. Why is study of permanent deformation important in engineering?

11 / 50

11. A rod of length , cross-sectional area , is compressed longitudinally by . If Young’s modulus , find applied force.

12 / 50

12. How is strain hardening useful in the production of beverage cans?

13 / 50

13. What happens to a material when it is stressed just beyond the yield point?

14 / 50

14. What does Hooke’s law state?

15 / 50

15. Which of the following materials is highly ductile?

16 / 50

16. In the plastic deformation region, what is true about stress and strain?

17 / 50

17. If a wire of length and cross-sectional area is subjected to a tensile force , the elongation is given by:

18 / 50

18. What is the SI unit of strain?

19 / 50

19. Which of the following statements is correct?

20 / 50

20. Which physical quantity is defined as force per unit area?

21 / 50

21. A material has Young’s modulus and bulk modulus . Find Poisson’s ratio .

22 / 50

22. Which equation best describes permanent strain after yielding?

23 / 50

23. If stress is below proportionality limit, then:

24 / 50

24. Which of the following is a characteristic of plastic deformation?

25 / 50

25. What is the correct definition of stress in solids?

26 / 50

26. Which property makes elastic catheters effective in medical applications?

27 / 50

27. Which modulus is related to compressibility of a material?

28 / 50

28. Why is titanium alloy used in bone implants?

29 / 50

29. A steel rod of length , diameter , is subjected to a tensile force of . It elongates by . Calculate Young’s modulus.

30 / 50

30. Why is steel preferred over aluminum in construction of bridges?

31 / 50

31. Which property does UTS measure in a material?

32 / 50

32. Which of the following pairs correctly matches ductile and brittle material behaviour?

33 / 50

33. Why are metals heated before forging or rolling?

34 / 50

34. A rod fixed at both ends is heated by . If , , calculate thermal stress developed.

35 / 50

35. Why is rubber used in grips of cricket bats and tennis rackets?

36 / 50

36. What is the effect of tempering on quenched steel compared to strain hardening?

37 / 50

37. A component at shows creep strain rate of . If operating temperature increases to , creep rate becomes . What is the ratio of creep rates?

38 / 50

38. What is meant by linear elastic deformation?

39 / 50

39. What is cold working?

40 / 50

40. Which application of plastic deformation is observed in earthquake-resistant building design?

41 / 50

41. A steel rod of length and cross-sectional area is subjected to a tensile force of . If , calculate elongation.

42 / 50

42. In material testing, why is it crucial to know the breaking point of a solid?

43 / 50

43. The formula for strain in terms of applied force , length , area , and Young’s modulus is:

44 / 50

44. Which of the following statements is correct about strain hardening?

45 / 50

45. A steel rod of radius , length , is subjected to shear stress . If , calculate lateral displacement of free end.

46 / 50

46. A turbine blade operates at . If the activation energy for creep is , and gas constant , what factor reduces creep rate when temperature drops to ?

47 / 50

47. In linear elastic deformation, the stress-strain graph is:

48 / 50

48. Why does fracture toughness improve with higher temperature in many metals?

49 / 50

49. A steel wire and a copper wire of same length and cross-sectional area are joined in series and loaded with 100 N. If elongation of steel = , what is elongation of copper if ?

50 / 50

50. A material initially stressed to shows a stress of after 100 s at constant strain. What is the relaxation time ?

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Practice Mechanical Properties of Solids MCQs
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Class 11 Physics — Chapter 9: Mechanical Properties of Solids Online Test

The Mechanical Properties of Solids Online Test helps Class 11 students understand how different materials behave under the action of forces. This chapter is not just theoretical — it connects Physics to the real world through concepts like stress, strain, elasticity, Young’s modulus, and Hooke’s law. Many students find this topic tricky at first, but once they start solving practical-based questions, it becomes one of the most scoring chapters in Physics.

These online tests are based on the NCERT Class 11 Physics Chapter 9 — Mechanical Properties of Solids and follow the latest CBSE pattern. Each test gives you an exam-like experience with multiple-choice questions, a timer, and instant results. You can attempt them anytime, anywhere, and track your progress with each paper.

By regularly attempting this Mechanical Properties of Solids Online Test, you’ll strengthen your understanding of elasticity and material behavior. Each question is selected carefully to test your clarity on formulas, graphs, and applications. Students who practice these papers consistently gain confidence and perform better in school exams, JEE, and NEET.

About this Online Test

The Chapter 9 Online Test is divided into three timed papers that gradually increase in level. You can start with basics, move to mixed difficulty, and finally challenge yourself with advanced-level problems.

  • Paper 1 — Fundamentals: 20 questions · 30 min · Pass ≥ 40%
  • Paper 2 — Concept Practice: 30 questions · 45 min · Pass ≥ 50% · Random questions each attempt
  • Paper 3 — Advanced Test: 50 questions · 75 min · Pass ≥ 70% · Certificate on passing

All papers are auto-graded and include a detailed answer review. Papers 2 and 3 offer new sets of questions every time you attempt, making your learning continuous and engaging.

Key Topics Covered (Mechanical Properties of Solids)

  • Elasticity and plasticity
  • Stress and strain — longitudinal, shear, and volumetric
  • Hooke’s law and stress–strain curve
  • Elastic moduli: Young’s modulus, bulk modulus, rigidity modulus
  • Poisson’s ratio and its significance
  • Elastic potential energy in a stretched wire
  • Applications of elasticity in daily life and industries

Why You Should Take This Test

Understanding mechanical properties through reading is not enough. You need to practice to remember formulas and learn when to apply them. This online test helps you:

  • Master formula-based and concept-based problems
  • Revise all important elasticity and stress-strain questions
  • Improve accuracy with time-based challenges
  • Get instant feedback and result analysis
  • Build confidence for board and competitive exams

Who Should Attempt

  • Class 11 CBSE/NCERT students revising Chapter 9
  • JEE/NEET aspirants focusing on mechanics-based questions
  • Students who find elasticity and modulus numericals confusing
  • Teachers looking for ready-to-use online chapter tests

Preparation Tips for Chapter 9

  • Memorize all elasticity formulas like Y = Stress / Strain, K = Volume Stress / Volume Strain, etc.
  • Understand the shape of the stress-strain graph and its regions.
  • Study the difference between elastic and plastic behavior of materials.
  • Attempt Paper 1 after reading NCERT; attempt Paper 2 & 3 for deeper understanding.
  • Revisit incorrect answers and revise related concepts from your notes.

Before You Start

  • Do not refresh or close the tab while taking the test.
  • Use Chrome or Edge browser for smooth performance.
  • Ensure a stable internet connection during the test.

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