Deformation of Solids 2.0

Deformation in materials is a response to external forces that cause a change in the shape or size of the material.

• True

• False

What is the term used to describe the response of materials to external forces causing a change in shape or size?

• Deformation

• Transformation

Is deformation in materials solely caused by internal factors?

• True

• False

Which of the following is not a result of external forces acting on materials?

• Deformation

• Color change

• Decrease length

• Increase length

A load is the force applied to a material. It can cause changes only in the shape. Size of the material is constant.

• True

• Fals

Which is true statement?
(multiple correct answer)

• Tensile Load: Causes stretching and elongation of the material

• Compressive Load: Results in the shortening or squeezing of the material

• Shear Load: Involves forces acting parallel to each other but in opposite directions, leading to a sliding deformation

• Shear Load: Involves forces acting parallel to each other but in opposite directions, leading to

  shortening or squeezing of the material

Factors Affecting Deformation:

• material's inherent properties

• the magnitude of the force

• the direction of the force

• the area over which force is applied

in physics, what is term of a measure of the internal forces in a material per unit area, caused by external loads?

• Load

• Stress

• Tensile Force

• Deformation

Which are true statement about extension?

(multiple correct answer)

• Extension is an increase in length of a material under tensile load

• Extension is measured from the material's original length, typically in millimetres (mm) or metres (m)

• Elastic extension is reversible, where the material returns to its original length once the load is removed

• Plastic extension is a permanent deformation

Which are true statement about compression?

(multiple correct answer)

• Compression is a decrease in length under compressive load

• compression can be either elastic or plastic

• compression is only elastic

• compression is only plastic