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Units of Measurement/Density
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Density is the mass per unit volume of a substance. The formula for density is:
D=m/v.
The unit for mass is kilograms (kg)/grams (g) and volume in centimetres cubed (cm3) or metres cubed (m3).
Example 1. A stone of mass 20 kg with volume 4 cm3 calculate its density.
density = mass/volume
= 20kg/4cm3
= 5kg/cm3