Question

6. Why the unit of density and pressure respectively are called derived units?

Answer 1

Answer:

Other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. ... SI derived unit ... mass density, kilogram per cubic meter, kg/m3 ... pressure, stress, pascal, Pa, N/m2, m-1·kg·s-2.

Explanation:

Density is a derived unit because it's not reported as a pure unit. (A pure unit would be something like kilograms or meters.)

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