Hardness is measured using....

Question

a)Pascals

b)Newtons/Metres

c)A relative scale

d)Poisson's ratio

Answer 1

If you're talking minerals, Moh's scale, which is a relative scale.  In engineering Rockwells is much more accurate. It's also relative.

Answer 2

C) A relative scale, such as the vickers scale or the rockwell scale.

Answer 3

It's a relative scale, hardness is a measure that doesn't correspond to units of measure of time, mass or linear. The test for hardness is generally a matter of how much indentation is left by a piece of known hardness and profile.

Poisson's ratio, incidentally, is unit-less as it's a measure of units of length divided by units of length. The other two choices derive from time, mass and distance.

Answer 4

C, definitely

pascals are pressure, newtonmeters are a vector thing, and poisson's ratio is from statistics.