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

2 / 30

2. Why are metals annealed after cold working?

3 / 30

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

4 / 30

4. Why is elasticity important in the process of forging?

5 / 30

5. A stress of produces a strain of . What is the Young’s modulus of the material?

6 / 30

6. If a material has bulk modulus and volumetric strain = , what pressure is applied?

7 / 30

7. Which one of the following is true about UTS and breaking stress?

8 / 30

8. At which point on the stress–strain curve does the material bear the maximum stress?

9 / 30

9. Which of the following is the primary cause of brittle fracture in materials?

10 / 30

10. A brass wire of length , cross-sectional area , is subjected to a force of . If Young’s modulus of brass is , find the elongation.

11 / 30

11. Why are metals heated before forging or rolling?

12 / 30

12. Which example best shows linear elasticity in daily life?

13 / 30

13. In the plastic deformation region, what happens to elongation when load is increased?

14 / 30

14. How does the rate of loading affect plastic deformation?

15 / 30

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

16 / 30

16. In material science, why is Young’s modulus important for engineers?

17 / 30

17. Which metal typically shows a distinct yield point on its stress–strain curve?

18 / 30

18. Why does ductility decrease during strain hardening?

19 / 30

19. Which point on the stress–strain curve marks the end of elastic behaviour?

20 / 30

20. What is creep?

21 / 30

21. Which of the following correctly represents the order of points on a stress–strain curve for mild steel?

22 / 30

22. A wire is stretched by when a load of is applied. If the same wire is stretched by , what load is required, assuming Hooke’s law holds?

23 / 30

23. Which one of the following materials has the highest Young’s modulus?

24 / 30

24. Which modulus is relevant in calculating the speed of longitudinal sound waves in a solid?

25 / 30

25. In material testing, stress relaxation helps to determine:

26 / 30

26. In the stress–strain curve of mild steel, which point is higher: yield strength or ultimate strength?

27 / 30

27. In which region of a stress-strain curve does linear elastic deformation occur?

28 / 30

28. Which phenomenon occurs if a metal wire is stretched beyond its elastic limit?

29 / 30

29. Why is steel preferred over iron in building bridges?

30 / 30

30. Why does ductile fracture occur more slowly than brittle fracture?

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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 of the following methods improves fracture resistance in metals?

2 / 50

2. Why does a material fail at the breaking point?

3 / 50

3. A brass wire of length and cross-sectional area is stretched by under a force of . Find Young’s modulus.

4 / 50

4. In material testing, what does fracture toughness measure?

5 / 50

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

6 / 50

6. In the equation , what does represent?

7 / 50

7. What does the stress–strain relationship describe?

8 / 50

8. The importance of stress-strain study in construction lies in:

9 / 50

9. Which formula relates the elastic strain energy stored in a stretched wire of length , cross-sectional area , Young’s modulus , and elongation ?

10 / 50

10. A steel wire of length , area of cross-section , and Young’s modulus is subjected to a tensile force . What is the longitudinal strain?

11 / 50

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

12 / 50

12. Which parameter is commonly used to describe fatigue strength of a material?

13 / 50

13. Which property makes copper suitable for making electrical wires?

14 / 50

14. Which of the following is an example of strain hardening applied in sports equipment?

15 / 50

15. Which of the following materials shows almost no plastic region in its stress–strain curve?

16 / 50

16. Which of the following best defines elasticity?

17 / 50

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

18 / 50

18. In the torsion pendulum method, the time period is given by:

19 / 50

19. Who gave the fundamental law relating stress and strain for solids?

20 / 50

20. At which point on the stress–strain curve does the material bear the maximum stress?

21 / 50

21. Why is mild steel preferred for making machine parts that undergo repeated loading?

22 / 50

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

23 / 50

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

24 / 50

24. Which one of the following is true about UTS and breaking stress?

25 / 50

25. Which component in automobiles is most affected by creep at high temperatures?

26 / 50

26. What is the definition of elastic limit?

27 / 50

27. Why is plastic deformation important in manufacturing processes?

28 / 50

28. Which property allows a metal to be hammered into thin sheets without breaking?

29 / 50

29. The proportionality limit corresponds to which part of the stress–strain curve?

30 / 50

30. In the relation , what happens to strain if Young’s modulus is very large?

31 / 50

31. 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?

32 / 50

32. Which statement best summarizes the comparison between strain hardening and annealing?

33 / 50

33. Which of the following constants appears in Hooke’s law equation?

34 / 50

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

35 / 50

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

36 / 50

36. The length of a rod increases by when subjected to tensile stress of . If Young’s modulus = , find original length of rod.

37 / 50

37. In compression testing of concrete, Hooke’s law is applied up to:

38 / 50

38. Which property is most desirable in making kitchen utensils?

39 / 50

39. Why is excessive cold working avoided?

40 / 50

40. Which fracture mechanics principle is applied in designing safe automobile tires?

41 / 50

41. Which of the following statements is true regarding the three elastic moduli?

42 / 50

42. Shear stress is defined as:

43 / 50

43. Which of the following is the most important factor affecting creep rate in metals?

44 / 50

44. Which pair of properties are considered opposite to each other in solids?

45 / 50

45. A material has bulk modulus and shear modulus . Find its Young’s modulus .

46 / 50

46. A steel wire of radius is clamped at one end and twisted by torque of . If length = , calculate angle of twist. (Shear modulus )

47 / 50

47. Why is cold rolling of steel sheets done in industries?

48 / 50

48. Which characteristic feature is observed in brittle material’s stress–strain curve?

49 / 50

49. Which statement is true about yield point?

50 / 50

50. A steel rod of length , cross-section , is subjected to stress . If , calculate elongation.

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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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