Physics GCSE
Density
What Density means in Physics GCSE, as defined for AQA, OCR.
Definitions of Density
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Reference: AQA
Measured in kilograms per metre cubed, kg/m, it is multiplied by the height of the column and the gravitational field strength to give the pressure.
Found by dividing mass by volume, telling you how much mass is packed into each cubic centimetre or cubic metre of a material.
Mass per unit volume, ρ = m ÷ V, depending on how closely the particles are packed rather than on how heavy each particle is.
A quantity found by dividing mass by volume, so a fixed mass squeezed into a smaller volume has a higher density.
Tells you how much mass is packed into each cubic metre of a material, given by mass divided by volume.
Mass per unit volume, telling you how much mass is packed into a given volume of a material.
Topics that use Density
- Density of materials (AQA GCSE)
- Pressure in a fluid 2 (HT only) (AQA GCSE)
- Materials (OCR GCSE)
- The particle model (OCR GCSE)
Related terms
- units of density
- arrangement of particles
- average density
- Choosing appropriate apparatus
- column of liquid
- conservation of mass
- constant particle size
- Density as a property of a material
Using Density in the exam
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