Answered

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When a material is subjected to stress, what property describes its resistance to deformation?

(a) Elasticity
(b) Density
(c) Viscosity
(d) Conductivity

Sagot :

Rochirion

Answer:

(a) Elasticity

Explanation:

When a material is subjected to stress, the property that describes its resistance to deformation is:

(a) Elasticity

Elasticity is the property of a material that enables it to resist deformation and return to its original shape when the applied stress is removed. It quantifies the material's ability to withstand changes in shape or size under external forces and is characterized by the material's modulus of elasticity (also known as Young's modulus).

Other Options:

  • Density refers to the mass per unit volume of a material and does not describe resistance to deformation.
  • Viscosity is a measure of a fluid's resistance to flow and is not directly related to the deformation of solid materials.
  • Conductivity describes a material's ability to conduct heat or electricity and is not related to mechanical deformation.

The property that describes a material's resistance to deformation under stress is (a) elasticity.

Elasticity refers to the ability of a material to regain its original shape and size after the external force causing the deformation is removed. This property is crucial for materials used in applications where flexibility and resilience are needed, such as rubber bands, springs, and various structural components.

The concept of elasticity is typically quantified using Young's modulus, a parameter that measures the stiffness of a material. A material with a high Young's modulus is very resistant to deformation, while a material with a low Young's modulus deforms more easily.

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