Elasticity in Materials Science

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Questions and Answers

What does 'elasticity' refer to in physics?

The mass density of a material
The measure of a material's thermal conductivity
The speed of sound in a medium
The ability of a material to return to its original shape after deformation (correct)

All materials exhibit elasticity regardless of their structure.

False (B)

What is an example of a material that exhibits high elasticity?

Rubber

The stress applied to a material can lead to _____ when it undergoes deformation.

<p>strain</p> Signup and view all the answers

Match the following concepts with their definitions in elasticity:

<p>Elastic limit = The maximum stress a material can withstand without permanent deformation Young's modulus = A measure of the stiffness of a solid material Tensile strength = The resistance of a material to breaking under tension Plasticity = The ability of a material to undergo permanent deformation</p> Signup and view all the answers

Flashcards

Elasticity

Ability of a material to deform under stress and return to its original shape after the stress is removed.

Elastic Modulus

The measure of how much a material deforms under stress.

Elastic Limit

The maximum stress a material can withstand before it permanently deforms.

Plasticity

The ability of a material to deform plastically under stress.

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Stiffness

The tendency of a material to resist deformation.

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Study Notes

Elasticity

Elasticity is the ability of a material to deform under stress and return to its original shape when the stress is removed.
Materials that exhibit elastic behavior follow Hooke's Law.
Hooke's Law states that stress is directly proportional to strain, within the elastic limit.
The elastic limit is the point beyond which the material will not return to its original shape.
Beyond the elastic limit, the material enters the plastic region.
Elasticity is a crucial property in many engineering applications.
Different materials exhibit varying degrees of elasticity, influenced by their structure and composition.
Factors such as temperature and pressure can impact a material's elastic properties.