Question

State the examples of nearly perfect elastic and plastic bodies.

Answer 1

elastic and plastic materials are widely applicable and used in the field of science and technology. Thus, it is easier to understand these properties in terms of physics.
Generally, the terms ‘plastic’ and ‘elastic’ are, physical properties, used to describe an object. They describe the attributes of materials such as rubber, plastic, metal, etc. In physics, when an external force is applied to the surface of any material or a body, the material undergoes a physical change or deformation. Now, when the force is removed, the material depending on its properties may or may not return to its original shape.

Answer 2

Hii dear,

◆ Perfectly Elastic Body-
A material body which completely recovers its original size and shape upon removal of deforming forces is called a perfectly elastic body.

For Example -
- Quartz fibre
- Phosphor bronze
- Rubber band

◆ Perfectly Plastic Body -
A material body that does not recover its original shape or size at all even after removal of the deforming forces is called a perfectly plastic body.

For Example -
- Clay
- Wax
- Putty
- Dough

Hope this is helpful..