please anybody tell me what is hardness
Answers
Answer:
Explanation:Hardness is a measure of the resistance to localized plastic deformation induced by either mechanical indentation or abrasion. Some materials (e.g. metals) are harder than others (e.g. plastics, wood). Macroscopic hardness is generally characterized by strong intermolecular bonds, but the behavior of solid materials under force is complex; therefore, there are different measurements of hardness: scratch hardness, indentation hardness, and rebound hardness.
Hardness is dependent on ductility, elastic stiffness, plasticity, strain, strength, toughness, viscoelasticity, and viscosity.
Common examples of hard matter are ceramics, concrete, certain metals, and superhard materials, which can be contrasted with soft matter
the quality of being easy to mould, cut, compress, or fold.
"I snuggled deeper into the warm softness of my bed"
2.
a subtle effect or contrast; lack of sharp definition.
"a general softness of focus"
Hardness is the synonym for firmness..