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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. Which of the following correctly describes the elastic region?

2 / 30

2. 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.

3 / 30

3. A wire of length and cross-sectional area is stretched by under a load. If , what is the applied force?

4 / 30

4. Why are alloys used instead of pure metals in high-temperature applications?

5 / 30

5. If the strain-hardening exponent of a material is high, what does it indicate?

6 / 30

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

7 / 30

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

8 / 30

8. The ability of a material to be drawn into wires is called:

9 / 30

9. What is the definition of proportionality limit?

10 / 30

10. Which factor primarily affects the elastic behaviour of solids?

11 / 30

11. Which property of solids is responsible for the permanent bending of a metal rod after applying a strong force?

12 / 30

12. If stress is doubled within elastic limit, what happens to strain?

13 / 30

13. Which of the following is an example of a brittle material?

14 / 30

14. Why does ductility decrease during strain hardening?

15 / 30

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

16 / 30

16. Why is it important to test materials under Hooke’s law conditions before use in construction?

17 / 30

17. Which property makes steel cables suitable for lifting heavy loads in cranes?

18 / 30

18. Which of the following materials is highly ductile?

19 / 30

19. A beam of length , breadth , depth , is supported at ends and loaded at the center with . Find central deflection. ()

20 / 30

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

21 / 30

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

22 / 30

22. Which design principle is applied in aircraft fuselages to prevent crack propagation?

23 / 30

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

24 / 30

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

25 / 30

25. According to Norton’s law, steady-state creep rate is proportional to:

26 / 30

26. How does knowledge of mechanical properties help in sports equipment design?

27 / 30

27. Which property is tested in tensile strength experiments?

28 / 30

28. A rod of length and cross-sectional area is subjected to tensile force of . If Young’s modulus is , calculate extension.

29 / 30

29. At the elastic limit, which of the following is true?

30 / 30

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

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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. Why is steel used as reinforcement in concrete structures?

2 / 50

2. Why are alloys generally tougher than pure metals?

3 / 50

3. What is meant by linear elastic deformation?

4 / 50

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

5 / 50

5. A rod of length and cross-sectional area is subjected to tensile force of . If Young’s modulus is , calculate extension.

6 / 50

6. Which of the following is NOT an effect of cold working?

7 / 50

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

8 / 50

8. The formula is derived from:

9 / 50

9. How does grain size affect creep resistance at high temperatures?

10 / 50

10. A rod is subjected to uniform stress of . Volume = . . Find strain energy stored.

11 / 50

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

12 / 50

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

13 / 50

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

14 / 50

14. Which of the following is an example of plastic deformation?

15 / 50

15. A steel wire of length and radius is stretched by a force of . If , calculate the elongation.

16 / 50

16. Which material has very low fracture toughness?

17 / 50

17. A steel rod of length and area is subjected to a tensile force of . Calculate strain energy stored.

18 / 50

18. What is the SI unit of stress?

19 / 50

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

20 / 50

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

21 / 50

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

22 / 50

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

23 / 50

23. Why is stress relaxation test significant for materials used in gaskets and seals?

24 / 50

24. 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?

25 / 50

25. Why are metals heated before forging or rolling?

26 / 50

26. Ductile materials can be identified from their stress–strain curve because:

27 / 50

27. How does increasing temperature generally affect plastic deformation in metals?

28 / 50

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

29 / 50

29. A wire of length is stretched by . What is the longitudinal strain?

30 / 50

30. A material that is both malleable and ductile is:

31 / 50

31. Which type of materials generally exhibit significant plastic deformation before fracture?

32 / 50

32. Which property of solids is responsible for the permanent bending of a metal rod after applying a strong force?

33 / 50

33. According to Norton’s law, steady-state creep rate is proportional to:

34 / 50

34. Plasticity in solids refers to:

35 / 50

35. Which of the following materials shows a very well-defined yield point?

36 / 50

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

37 / 50

37. Which everyday object best demonstrates non-linear elastic deformation?

38 / 50

38. Why is hot rolling of steel easier than cold rolling?

39 / 50

39. What is the correct formula for shear strain?

40 / 50

40. A cube of side is acted upon by a tangential force of on one of its faces. If the face area is , what is the shear stress?

41 / 50

41. Which everyday statement by Hooke described his law originally?

42 / 50

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

43 / 50

43. Which of the following quantities can be calculated in materials testing using Hooke’s law?

44 / 50

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

45 / 50

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

46 / 50

46. Which of the following is the best everyday example of elasticity?

47 / 50

47. Which of the following correctly describes the plastic region of a stress–strain curve?

48 / 50

48. If a wire of length elongates by , the strain energy stored per unit volume is given by:

49 / 50

49. In torsional testing, the analog of Hooke’s law relates:

50 / 50

50. Which of the following materials has very high shear modulus?

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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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