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CBSE Class 11 (Science) Mechanical Properties of Solids and Fluids — practice questions — page 2

Explore 257 free Mechanical Properties of Solids and Fluids questions in CBSE Class 11 (Science) Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Mechanical Properties of Solids and Fluids questions and exercises with answers

Showing questions 31–60 of 257.

In the relation stress equals k times strain, the constant k is known as what?Read the answer and worked solution →On a stress strain curve, the yield point is also known by which name?Read the answer and worked solution →A loaded body that does not regain its original dimension after the load is removed is said to have what?Read the answer and worked solution →On a stress strain curve for a metal, point D marks which quantity?Read the answer and worked solution →If the ultimate strength and the fracture points on the curve are far apart, the material is described as what?Read the answer and worked solution →Rubber and the elastic tissue of the aorta stretch to very large strains. Such substances are called what?Read the answer and worked solution →What is true of the class of solids called elastomers?Read the answer and worked solution →The shear modulus of a material is also called by which name?Read the answer and worked solution →The reciprocal of the bulk modulus is given which name?Read the answer and worked solution →How do bulk moduli compare across solids, liquids and gases?Read the answer and worked solution →The strain measured perpendicular to the applied force is called what?Read the answer and worked solution →What units does Poisson ratio carry?Read the answer and worked solution →For steels, Poisson ratio lies in which range?Read the answer and worked solution →Match each term to its meaningRead the answer and worked solution →Elastic or plastic behaviour?Read the answer and worked solution →Order the stress strain curveRead the answer and worked solution →Which value is higherRead the answer and worked solution →Complete the elasticity ruleRead the answer and worked solution →True or false about elasticityRead the answer and worked solution →Sort the kinds of stressRead the answer and worked solution →Flip and match the stress termsRead the answer and worked solution →A liquid poured into a container acquires a:Read the answer and worked solution →The free surface of a liquid possesses some additional:Read the answer and worked solution →Surface tension concerns only liquids because gases have no:Read the answer and worked solution →Surface tension is defined as a force per unit:Read the answer and worked solution →Surface tension also equals the surface energy per unit:Read the answer and worked solution →The surface energy of an interface depends on:Read the answer and worked solution →Compared with molecules inside, those at the interface have energy:Read the answer and worked solution →The angle between the tangent to a liquid and the solid is the:Read the answer and worked solution →Whether a liquid spreads or forms droplets is decided by the:Read the answer and worked solution →

Worked practice questions

In the relation stress equals k times strain, the constant k is known as what?

  1. Poisson ratio
  2. Yield strength
  3. Volume strain
  4. Elastic modulus
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Correct answer: D. Elastic modulus

1. The constant fixes how much stress a given strain demands. 2. A stiffer material needs more stress for the same strain, so k is larger. 3. This proportionality constant is the modulus of elasticity. _Source: syllabus Physics, Ch 9 'Mechanical Properties of Solids'_

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On a stress strain curve, the yield point is also known by which name?

  1. The elastic limit
  2. The plastic limit
  3. The fracture limit
  4. The thermal limit
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Correct answer: A. The elastic limit

1. Up to this point the body still returns to its original dimension. 2. Past it the body no longer recovers when the load is taken off. 3. So the yield point is also known as the elastic limit. _Source: syllabus Physics, Ch 9 'Mechanical Properties of Solids'_

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A loaded body that does not regain its original dimension after the load is removed is said to have what?

  1. A yield strength
  2. A permanent set
  3. A lateral strain
  4. A bulk modulus
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Correct answer: B. A permanent set

1. Beyond the yield point the strain grows fast for little extra stress. 2. When the stress is brought back to zero the strain does not return to zero. 3. The material is said to have a permanent set. _Source: syllabus Physics, Ch 9 'Mechanical Properties of Solids'_

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