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Density is an example of a compound measure, which is one that involves more than one unit of measurement.
Density is a measure of mass (e.g. kg, g) in relation to unit volume (e.g. m3, cm3) and can be measured in kg/m3, g/cm3 etc.
We calculate densities using the following formula:
Density = Mass ÷ Volume
Example
A large block of oak has a mass of 185 kg and a volume of 0.25 m3.
Find its density in kg/m3.
Answer
Density = Mass ÷ Volume = 185 ÷ 0.25 = 740 kg/m3.
Now it's over to you to apply this formula to word problems by yourself.
