Physics
Fox
Summary
- The density of an object is defined as its mass divided by its volume. \[ \text{Density} = \frac{ \text{Mass} }{ \text{Volume} } \]
- This can be written on a formula triangle as:
- The units of density are kg/m3 ("kilograms per metre-cubed") and g/cm3 ("grams per centimetre-cubed"). When answering questions, use whichever one is easiest!
- All solids and liquids made from the same material will have the same density.
- If an object is less dense than the liquid/gas it is in, it will float.
- If an object is more dense than the liquid/gas it is in, it will sink.
