- Amal Augustine
- December 30, 2025
Master Mechanical Properties of Solids MCQs : The Ultimate Confidence-Boosting Practice Guide
The mechanical properties of solids explain how materials respond when external forces act on them, making this mechanical properties of solids mcqs topic one of the most important foundations in physics. Mechanical properties of solids mcqs Concepts such as stress, strain, elasticity, elastic limit, Young’s modulus, bulk modulus, rigidity modulus, and Poisson’s ratio are not only theoretical but also have deep real-world relevance in engineering, construction, and material science.
The Mechanical Properties of Solids MCQs focus on understanding how solid materials respond to external forces in terms of stress, strain, elasticity, plasticity, and energy storage. These mechanical properties of solids mcqs questions commonly test key laws such as Hooke’s law, along with important material constants like Young’s modulus, bulk modulus, shear modulus, and Poisson’s ratio. Through numerical and conceptual mechanical properties of solids MCQs, students analyze stress–strain curves, identify elastic and plastic limits, and interpret material behavior such as brittleness, ductility, and elastic fatigue.
For competitive exams like NEET, JEE, and state or CBSE board exams, questions from this mechanical properties of solids mcqs are frequently tested in the form of numerical and conceptual MCQs. Solving Mechanical Properties of Solids MCQs helps students understand material behavior under stretching, compression, twisting, and bending while strengthening problem-solving skills and exam confidence.
Mechanical Properties of Solids MCQs :
1. A stress of 6×108 N/m26 \times 10^8 \, \text{N/m}^2 is required for breaking a material. The density ρ\rho of the material is
A. 20m
B. 200m
C. 100m
D. 2000m
Answer: B
2. According to Hooke’s law of elasticity, if stress is increased, then the ratio of stress to strain
A. becomes zero
B. remains constant
C. decreases
D. increases
Answer: B
3. Which one of the following affects the elasticity of a substance?
A. Change in temperature
B. Hammering and annealing
C. Impurity in substance
D. All of these
Answer: D
4. The ratio of hydraulic stress to the corresponding strain is known as
A. Young’s modulus
B. Bulk modulus
C. Rigidity modulus
D. Compressibility
Answer: D
5. The ratio of tensile stress to the longitudinal strain is defined as
A. Bulk modulus
B. Young’s modulus
C. Shear modulus
D. Compressibility
Answer: B
6. The elastic energy stored per unit volume in a stretched wire is
A. 12×Young’s modulus×(strain)2\frac{1}{2} \times \text{Young’s modulus} \times (\text{strain})^2
B. 12×stress×(strain)2\frac{1}{2} \times \text{stress} \times (\text{strain})^2
C. 12×stressstrain\frac{1}{2} \times \frac{\text{stress}}{\text{strain}}
D. 12×Young’s modulus×stress\frac{1}{2} \times \text{Young’s modulus} \times \text{stress}
Answer: A
7. A heavy uniform rod is hanging vertically from a fixed support. It is stretched by its own weight. The diameter of the rod is
A. smallest at the top and gradually increases down the rod
B. largest at the top and gradually decreases down the rod
C. uniform everywhere
D. maximum in the middle
Answer: A
8. If longitudinal strain for a wire is 0.003 and Poisson’s ratio is 0.5, the lateral strain is
A. 0.003
B. 0.0075
C. 0.015
D. 0.4
Answer: C
9. Energy per unit volume of a stretched wire is given by
A. 12×stress×strain\frac{1}{2} \times \text{stress} \times \text{strain}
B. stress × strain
C. 12×load×strain\frac{1}{2} \times \text{load} \times \text{strain}
D. load × strain
Answer: A
10. Two wires A and B of the same material are stretched by the same force.
Wire A: length ll, radius rr
Wire B: length 2l2l, radius 2r2r
The ratio of elongation in A to B is
A. 2 : 1
B. 3 : 1
C. 1 : 2
D. 1 : 4
Answer: A
11. The area under the stress–strain curve represents
A. Work
B. Power
C. Young’s modulus
D. Energy density
Answer: D
12. An elastic modulus is the constant of proportionality in
A. stress = constant × strain
B. strain = constant × stress
C. stress × strain = constant
D. depends on type of modulus
Answer: A
13. A wire increases in length by 2%. The linear strain produced is
A. 0.1
B. 0.01
C. 0.2
D. 0.02
Answer: D
14. A solid sphere is rotating in free space. If its radius is increased keeping mass constant, which remains unchanged?
A. Angular velocity
B. Angular momentum
C. Moment of inertia
D. Rotational kinetic energy
Answer: B
15. If a stretched wire suddenly snaps, the temperature of the wire
A. remains same
B. decreases
C. increases
D. first decreases then increases
Answer: C
16. Which substance has the highest elasticity?
A. Steel
B. Copper
C. Rubber
D. Sponge
Answer: A
17. Which statement is correct?
A. Hooke’s law is valid only within elastic limit
B. Young’s modulus is dimensionless
C. Stress × strain equals stored energy
D. All are correct
Answer: A
18. Writing on a blackboard with chalk is possible due to
A. Adhesive force
B. Surface tension
C. Viscosity
D. None
Answer: A
19. A square wire frame dipped in liquid forms a film. Surface energy is
A. 2TL
B. 4TL
C. 8TL
D. 16TL
Answer: C
20. Stress in a steel rod under force 6.2×1046.2 \times 10^4 N is
A. 0.95×1080.95 \times 10^8 N/m²
B. 1.1×1081.1 \times 10^8 N/m²
C. 2.2×1082.2 \times 10^8 N/m²
D. 3.2×1083.2 \times 10^8 N/m²
Answer: C
21. Repeated straining causes violation of Hooke’s law due to
A. Yield point
B. Permanent set
C. Elastic fatigue
D. Breaking stress
Answer: D
22. Match the following (correct combination):
A. (a)2 (b)1 (c)4 (d)3
B. (a)3 (b)4 (c)1 (d)2
C. (a)3 (b)1 (c)4 (d)2
D. (a)1 (b)2 (c)3 (d)4
Answer: C
23. Force required to stretch steel wire by 0.1% is
A. 1000 N
B. 2000 N
C. 5000 N
D. 4000 N
Answer: B
24. Lateral strain produced in steel wire is
A. 0.26×10−40.26 \times 10^{-4}
B. 0.26×10−20.26 \times 10^{-2}
C. 0.26×10−30.26 \times 10^{-3}
D. 0.26×10−10.26 \times 10^{-1}
Answer: C
25. Velocity of longitudinal wave in solid rod is
A. 3.65×1033.65 \times 10^3 m/s
B. 18.96×10318.96 \times 10^3 m/s
C. 145.75×103145.75 \times 10^3 m/s
D. 6.32×1036.32 \times 10^3 m/s
Answer: D
26. Young’s modulus of a perfectly rigid body is
A. Zero
B. Infinite
C. 1×10101 \times 10^{10} N/m²
D. 10×101010 \times 10^{10} N/m²
Answer: B
27. Pressure required to reduce volume of liquid by 2% is
A. 3×1083 \times 10^8 N/m²
B. 9×1089 \times 10^8 N/m²
C. 6×1086 \times 10^8 N/m²
D. 12×10812 \times 10^8 N/m²
Answer: C
28. For a perfectly rigid body
A. Young’s infinite, bulk zero
B. Young’s zero, bulk infinite
C. Both zero
D. Both infinite
Answer: D
29. Work done in stretching a wire is
A. 1.6 J
B. 0.8 J
C. 8 J
D. 16 J
Answer: B
30. Stress causing change in volume of a body is
A. Tensile
B. Compressive
C. Hydraulic
D. Shearing
Answer: C
Conclusion on Mechanical Properties of Solids MCQs
Mastering Mechanical Properties of Solids MCQs allows students to move beyond memorization and develop a clear physical intuition about how solids deform and store energy. These mechanical properties of solids MCQs reinforce critical ideas such as elastic fatigue, breaking stress, energy density, and proportional limits, which are essential for scoring well in exams. Consistent practice of such questions on mechanical properties of solids mcqs ensures conceptual clarity, faster calculations, and reduced errors, making this topic a strong scoring area in physics.
Many questions on mechanicals properties of solids mcqs also link theory to real-world applications, including wire stretching, breaking stress, elastic potential energy density, and deformation under tensile, compressive, and hydraulic stresses. Practicing these mechanical properties of solids MCQs strengthens conceptual clarity, improves formula application, and builds confidence for competitive exams like JEE, NEET, and board examinations, where precision and quick reasoning are essential.
Amal Augustine is the founder of ExQuizMe, a dynamic learning and quiz platform built to make education engaging, competitive, and fun. A passionate learner and an academic achiever, Amal completed his schooling at Government HSS Manjapra, graduating with 92.5% in Computer Science. He later earned his degree from St. Stephen’s College, University of Delhi, one of India’s most prestigious arts and science institutions.
Currently, Amal is pursuing his Master’s degree at National Sun Yat-sen University, Taiwan, where he continues to deepen his interest in research and technology. Throughout his school and college years, he won 50+ national-level interschool and collegiate quiz competitions, was
Beyond academics, Amal Augustine is an avid reader of science journals, a dedicated research student, and a technology enthusiast who loves programming and exploring the world of Computer Science. Through ExQuizMe, he aims to make learning accessible, enjoyable, and empowering for students across the globe.