Feature Post

Sunday, October 16, 2011

Properties of Matter


The mass of a substance in unit volume is density (D).

D = m / V

Measuring the density of substances is easier when compared to the density of other substances in the density of information. Water is used for this purpose. The ratio of the density of the substance in water is called specific gravity (SG) of the substance.

SG = Dsubstance / dwater

The density of water is 1000 kg/m3


The pressure (P) is the force (F) per unit area (A)

P = F / A

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