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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. What is the correct definition of strain?

2 / 30

2. Which of the following correctly describes the elastic region?

3 / 30

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

4 / 30

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

5 / 30

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

6 / 30

6. Why are viscoelastic models used in biomechanics instead of purely elastic models?

7 / 30

7. A rubber band stretched to constant length shows decreasing force with time. This is an example of:

8 / 30

8. For making springs, which property of material is most important?

9 / 30

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

10 / 30

10. A wire of length , radius , shear modulus , is twisted through angle . Find torsional potential energy stored.

11 / 30

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

12 / 30

12. The formula is derived from:

13 / 30

13. A wire of length , radius , is stretched by force . If elongation is , find Young’s modulus.

14 / 30

14. Which of the following statements is correct?

15 / 30

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

16 / 30

16. A steel rod of cross-sectional area is subjected to tensile stress of . If Young’s modulus of steel is , find elongation of the rod of length .

17 / 30

17. What is the drawback of strain-hardened materials in engineering applications?

18 / 30

18. Which method is commonly used in automotive and aerospace industries to improve fracture resistance of steel?

19 / 30

19. Which modulus is critical in designing dies and molds for shaping materials?

20 / 30

20. 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.

21 / 30

21. If a wire obeys Hooke’s law, then the ratio of stress to strain is:

22 / 30

22. Which of the following statements is correct about elastic bodies?

23 / 30

23. Which modulus is associated with volumetric strain?

24 / 30

24. Which mechanical property is most important for designing earthquake-resistant buildings?

25 / 30

25. Why are composite materials (like fiberglass) used in hockey sticks and skis?

26 / 30

26. Why is pre-stressed concrete used in structural engineering?

27 / 30

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

28 / 30

28. Why is silicone rubber used in making prosthetic limbs?

29 / 30

29. What is the SI unit of Young’s modulus in ?

30 / 30

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

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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. In forging metals, which type of deformation is primarily involved?

2 / 50

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

3 / 50

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

4 / 50

4. Bulk modulus can be measured experimentally by studying:

5 / 50

5. In a tensile test, why is stress–strain curve plotted?

6 / 50

6. A copper wire of length , area , is subjected to load of . If elongation = , find Young’s modulus.

7 / 50

7. What is the correct formula for shear strain?

8 / 50

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

9 / 50

9. What is the correct definition of strain?

10 / 50

10. Why is proportionality limit lower than elastic limit?

11 / 50

11. Which of the following materials is highly ductile?

12 / 50

12. Which point on the stress–strain curve marks the beginning of plastic deformation?

13 / 50

13. Which of the following is a dimensionless quantity?

14 / 50

14. A wire of length and area is subjected to a force of . If elongation is , calculate Young’s modulus.

15 / 50

15. What does the yield point indicate about a material?

16 / 50

16. In Hooke’s law, the proportionality constant is known as:

17 / 50

17. When does a body show perfectly elastic behavior?

18 / 50

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

19 / 50

19. A steel rod of cross-sectional area is subjected to tensile stress of . If Young’s modulus of steel is , find elongation of the rod of length .

20 / 50

20. Which modulus of elasticity is most relevant for bones under compressive loads?

21 / 50

21. Why is steel considered nearly perfectly linear elastic?

22 / 50

22. In designing high-temperature components like boiler tubes, creep resistance is improved by:

23 / 50

23. Which material has very low fracture toughness?

24 / 50

24. Which of the following real-life factors demonstrate temperature affecting elasticity?

25 / 50

25. Why are elastic properties of polymers studied in manufacturing packaging materials?

26 / 50

26. A wire of cross-sectional area is subjected to a force of . What is the stress produced in the wire?

27 / 50

27. Which modulus is most relevant in studying deformation of blood vessels under blood pressure?

28 / 50

28. A steel rod obeys Hooke’s law up to stress . If Young’s modulus is , what is the maximum elastic strain?

29 / 50

29. A wire of length and diameter is stretched under a load of . If the lateral strain is and longitudinal strain is , calculate Poisson’s ratio.

30 / 50

30. Which mechanical property is most important for designing earthquake-resistant buildings?

31 / 50

31. Which structural component primarily depends on shear modulus for safety design?

32 / 50

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

33 / 50

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

34 / 50

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

35 / 50

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

36 / 50

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

37 / 50

37. Which property ensures that metallic wires can be drawn into fine wires during wire-drawing?

38 / 50

38. Elastomers like rubber have which type of stress–strain curve?

39 / 50

39. Which of the following is dimensionally equivalent to Young’s modulus?

40 / 50

40. What does brittleness of a material mean?

41 / 50

41. Rubber is used in manufacturing belts and couplings because:

42 / 50

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

43 / 50

43. If a material is stressed just beyond its elastic limit, what happens?

44 / 50

44. Which of the following best describes permanent deformation?

45 / 50

45. A metal sample experiences a steady-state creep strain rate of at . If stress is increased to with stress exponent , what will be the new creep rate?

46 / 50

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

47 / 50

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

48 / 50

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

49 / 50

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

50 / 50

50. A steel wire of length and radius is subjected to a load of . If , calculate the extension.

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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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