Mechanical Properties of Solids — Practice Quiz
Maharashtra Board · Class 11 · Physics
Try a 4-question quiz on Mechanical Properties of Solids for Maharashtra Board Class 11 Physics: tap an answer to check it and see why.
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Quick Quiz: Mechanical Properties of Solids
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What is the SI unit of stress?
A wire of length 2 m and cross-sectional area 1 mm² is stretched by applying a force of 100 N. Calculate the stress developed in the wire.
According to Hooke's law, within elastic limit:
A steel wire of length 1 m extends by 1 mm when a load of 1 kg is applied. Calculate the strain produced. (g = 10 m/s²)
Sample Questions
Which of the following statements about strain are correct?
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Strain is dimensionless, Strain has units of m/m, Strain = Change in dimension/Original dimension, Strain is a ratio of similar quantities
Strain is the ratio of change in dimension to original dimension. Since both quantities have the same units (length), strain is dimensionless. It's a geometric property independent of material type.
Young's modulus is related to which type of deformation?
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Change in length
Young's modulus (Y) is the ratio of longitudinal stress to longitudinal strain. It measures the resistance of a material to change in length under tensile or compressive forces.
Which of the following are types of stress?
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Tensile stress, Compressive stress, Shearing stress, Volume stress
The three main types of stress are: 1) Tensile/Compressive stress (change in length), 2) Volume/Hydraulic stress (change in volume), and 3) Shearing stress (change in shape). Linear stress is not a standard classification.
The modulus of elasticity for change in volume is called:
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Bulk modulus
Bulk modulus (K) is the ratio of volume stress to volume strain. It measures the resistance of a material to uniform compression from all sides, causing change in volume.
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