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Flashcards on Elastic Properties of Solids
Click on the flashcard to see the answer
What is the definition of elasticity?
The ability of a material to regain its original shape after being deformed.
What are the three types of deformation in solids?
Elastic, plastic, and viscous deformation.
What is the formula to calculate stress?
Stress = Force / Area
What is the formula to calculate strain?
Strain = Change in length / Original length
What is Hooke's Law?
It states that the force needed to extend or compress a spring by some distance is directly proportional to that distance.
What is Young's modulus?
It is a measure of the stiffness of a material and is defined as the ratio of stress to strain.
What is the unit of stress?
Pascals (Pa)
What is the unit of strain?
No unit (dimensionless)
What are some examples of elastic solids?
Rubber bands, springs, and trampoline mats.
What is the relationship between stress and strain in elastic deformation?
They are directly proportional (linear relationship).
What happens to a solid when it undergoes plastic deformation?
The material undergoes permanent deformation.
What is the elastic limit of a solid?
It is the maximum stress or force that a solid can withstand without experiencing permanent deformation.
What is shear modulus?
It is a measure of a material's resistance to shear deformation.
What is bulk modulus?
It is a measure of a material's resistance to uniform compression or volume change.
What is the relationship between stress, strain, and Young's modulus?
Stress = Young's modulus × Strain
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Test Your Knowledge
What is the definition of elasticity?
The ability of a material to regain its original shape after being deformed.
The ability of a material to stretch without breaking.
The ability of a material to conduct heat.
The ability of a material to dissolve in water.
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What is the unit of stress?
Meters
Pascals (Pa)
Newtons
Kilograms
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What is Hooke's Law?
All materials are elastic.
Stress is directly proportional to strain.
The force needed to extend or compress a spring is directly proportional to that distance.
Elastic deformation is reversible.
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What is the relationship between stress and strain in elastic deformation?
They are directly proportional (linear relationship).
They are inversely proportional.
They are not related.
It depends on the material.
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What is the formula to calculate strain?
Strain = Force / Area
Strain = Change in length / Original length
Strain = Mass / Volume
Strain = Velocity × Time
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What is the elastic limit of a solid?
The maximum stress or force that a solid can withstand without experiencing permanent deformation.
The maximum strain a solid can undergo before breaking.
The maximum temperature at which a solid remains solid.
The maximum density a solid can achieve.
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What is shear modulus?
A measure of a material's resistance to bending.
A measure of a material's resistance to compression.
A measure of a material's resistance to shear deformation.
A measure of a material's resistance to tensile deformation.
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What is bulk modulus?
A measure of a material's resistance to bending.
A measure of a material's resistance to uniform compression or volume change.
A measure of a material's resistance to shear deformation.
A measure of a material's resistance to tensile deformation.
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What is the formula to calculate stress?
Stress = Force / Area
Stress = Change in length / Original length
Stress = Mass / Volume
Stress = Velocity × Time
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What is Young's modulus?
A measure of a material's resistance to bending.
A measure of a material's stiffness and is defined as the ratio of stress to strain.
A measure of a material's resistance to shear deformation.
A measure of a material's resistance to tensile deformation.
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