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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

Good luck! 👍

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?

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

2 / 30

2. A material has creep rate described by . If stress is doubled, how does creep rate change?

3 / 30

3. Which modulus is relevant in calculating the speed of sound in a liquid?

4 / 30

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

5 / 30

5. Which region of the stress–strain curve shows strain hardening?

6 / 30

6. Which property is opposite to elasticity?

7 / 30

7. Which property of alloys is most critical for preventing creep in jet engines?

8 / 30

8. Two wires of same length and same load but radii in ratio 1:2 are stretched. Find the ratio of energy stored per unit volume.

9 / 30

9. Which of the following best represents non-linear elastic behavior?

10 / 30

10. In the creep curve, which stage shows nearly constant strain rate?

11 / 30

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

12 / 30

12. Why is carbon fiber used in sports equipment like tennis rackets and bicycles?

13 / 30

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

14 / 30

14. A steel rod of length is fixed at both ends. A temperature rise of is produced. If coefficient of linear expansion and , calculate stress developed.

15 / 30

15. Why are alloys like brass and bronze used in engineering instead of pure metals?

16 / 30

16. Which of the following is the property of being permanently stretched without rupture?

17 / 30

17. In designing airbags for cars, which property is most relevant?

18 / 30

18. A steel wire and a copper wire of same length and cross-sectional area are joined end to end and stretched by 100 N. If Young’s modulus of steel = and copper = , ratio of elongations of steel to copper is:

19 / 30

19. The resistance of a body to a change in shape without a change in volume is measured by:

20 / 30

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

21 / 30

21. Why are surface defects dangerous for fatigue life?

22 / 30

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

23 / 30

23. Which everyday example demonstrates plastic deformation after yield point?

24 / 30

24. Which of the following is an example of elasticity?

25 / 30

25. For the above material (Q542), calculate bulk modulus .

26 / 30

26. What is ultimate tensile strength (UTS) on a stress–strain curve?

27 / 30

27. Which relation is true for Hooke’s law formulation?

28 / 30

28. Shear strain is observed in which of the following cases?

29 / 30

29. When does a body show perfectly elastic behavior?

30 / 30

30. A steel rod of length , area , coefficient of linear expansion , is heated by . If ends are fixed, calculate thermal stress.

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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 / 30

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

2 / 30

2. What is the primary mechanism of strain hardening in metals?

3 / 30

3. Why is ductile plastic deformation preferred in structural materials?

4 / 30

4. Which of the following construction materials is most elastic in terms of modulus of elasticity?

5 / 30

5. Why are strain-hardened stainless steels used in making surgical instruments?

6 / 30

6. At the breaking point, how does the material behaviour differ from plastic deformation?

7 / 30

7. In the elastic region, the slope of the stress–strain curve is equal to:

8 / 30

8. In the creep curve, which stage shows nearly constant strain rate?

9 / 30

9. Why is elasticity important in manufacturing cutting tools?

10 / 30

10. For the above material (Q542), calculate bulk modulus .

11 / 30

11. Which preventive measure is widely adopted in designing jet engine blades to combat creep?

12 / 30

12. Why is elasticity important in the design of artificial heart valves?

13 / 30

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

14 / 30

14. Which property is tested in tensile strength experiments?

15 / 30

15. Which relation connects bulk modulus , shear modulus , and Young’s modulus ?

16 / 30

16. In which type of materials is stress relaxation most significant at room temperature?

17 / 30

17. How does the nature of the material affect elasticity?

18 / 30

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

19 / 30

19. A steel wire of length and cross-sectional area is stretched under a load of . If Young’s modulus of steel is , what is the extension produced?

20 / 30

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

21 / 30

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

22 / 30

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

23 / 30

23. A steel component operates at with creep rate . If temperature rises to , creep rate increases to . Which factor is most responsible?

24 / 30

24. Which of the following best represents a case of elastic deformation?

25 / 30

25. A wire of length and diameter is subjected to a load of . If Young’s modulus = , find the strain energy per unit volume.

26 / 30

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

27 / 30

27. What is bulk modulus of a material?

28 / 30

28. Which type of creep dominates at very high temperatures near melting point?

29 / 30

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

30 / 30

30. Which modulus is associated with volumetric strain?

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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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