Mechanical Properties of Solids — Flashcards
Maharashtra Board · Class 11 · Physics
22 flashcards for Mechanical Properties of Solids (Maharashtra Board Class 11 Physics) to test yourself on key terms and facts.
Interactive on Super Tutor
Studying Mechanical Properties of Solids? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
Free trial, no card needed.
Define stress and provide its formula with units.
Answer
Stress is the internal restoring force per unit area of a body when subjected to deformation. Formula: Stress = F/A Where F = applied force, A = cross-sectional area SI Unit: N/m² or Pascal (Pa) Dim…
What is strain? Write its formula and characteristics.
Answer
Strain is the ratio of change in dimensions of a body to its original dimensions due to applied force. Formula: Strain = Change in dimensions/Original dimensions Characteristics: • Dimensionless qua…
State Hooke's Law and write its mathematical expression.
Answer
Hooke's Law: Within elastic limit, stress is directly proportional to strain. Mathematical Expression: Stress ∝ Strain Stress/Strain = constant (Modulus of Elasticity) This law is valid only within …
Define Young's modulus and write its formula with units.
Answer
Young's modulus is the ratio of longitudinal stress to longitudinal strain within elastic limit. Formula: Y = (F/A)/(Δl/L) = FL/(AΔl) Where: F = applied force, A = cross-sectional area L = original l…
A steel wire of length 2m and cross-sectional area 1×10⁻⁶ m² is stretched by a force of 100N. If the elongation is 2×10⁻³ m, calculate Young's modulus.
Answer
Given: L = 2 m A = 1×10⁻⁶ m² F = 100 N Δl = 2×10⁻³ m Formula: Y = FL/(AΔl) Solution: Y = (100 × 2)/(1×10⁻⁶ × 2×10⁻³) Y = 200/(2×10⁻⁹) Y = 1×10¹¹ N/m² Therefore, Young's modulus = 1×10¹¹ N/m²…
Define Bulk modulus and explain its significance.
Answer
Bulk modulus is the ratio of volume stress to volume strain within elastic limit. Formula: K = -V(dP/dV) = Volume stress/Volume strain Where: V = original volume, dP = change in pressure dV = change …
What is modulus of rigidity? Write its formula and applications.
Answer
Modulus of rigidity (η) is the ratio of shear stress to shear strain within elastic limit. Formula: η = (F/A)/θ = F/(A×θ) Where: F = tangential force, A = area θ = shear strain (angle in radians) SI…
Define Poisson's ratio and write its formula.
Answer
Poisson's ratio is the ratio of lateral strain to longitudinal strain within elastic limit. Formula: σ = Lateral strain/Longitudinal strain σ = (Δd/d)/(Δl/l) Where: Δd = change in diameter, d = orig…
+14 more flashcards
Practise AllFrequently Asked Questions
What are the important topics in Mechanical Properties of Solids for Maharashtra Board Class 11 Physics?
How many flashcards are available for Mechanical Properties of Solids?
How should I revise Mechanical Properties of Solids for Class 11 exams?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Mechanical Properties of Solids
For serious students
Get the full Mechanical Properties of Solids chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Maharashtra Board Class 11 Physics. Free to start, no card needed.