Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the definition of elasticity in physics and materials science?
What is the definition of elasticity in physics and materials science?
- The ability of a body to change size and shape irreversibly
- The ability of a body to permanently deform under stress
- The ability of a body to resist a distorting influence and return to its original size and shape (correct)
- The ability of a body to resist a distorting influence but not return to its original size and shape
What is the difference between elasticity and plasticity?
What is the difference between elasticity and plasticity?
- Elasticity causes irreversible deformation, while plasticity allows the object to return to its original shape
- Elasticity causes the object to permanently deform, while plasticity allows for temporary deformation
- Elasticity allows the object to return to its original shape, while plasticity causes the object to remain in its deformed state (correct)
- Elasticity and plasticity are essentially the same with no significant difference
What causes elasticity in metals?
What causes elasticity in metals?
- Energy addition causing permanent deformation
- Stretching of polymer chains when forces are applied
- No specific physical reasons for elastic behavior in metals
- Changes in atomic lattice size and shape when forces are applied (correct)
What does Hooke's law state about elastic objects?
What does Hooke's law state about elastic objects?
Signup and view all the answers
What happens after small deformations in most materials with elasticity?
What happens after small deformations in most materials with elasticity?
Signup and view all the answers
