Question

what is plasticity in physics?

Answer 1

Plasticity:

1. The plasticity of a solid substance is defined in the fields of material science and physics as the ability of that solid to undergo deformation in its shape, which is a non-reversible change in the shape of the solid object and can be considered as the object's response to an external force applied to it.
2. When solids are bent or beaten into a specific (desired) shape, the permanent changes in shape caused by the material's plasticity can be regarded as a property of the material itself (since the changes occur within it).