Physics GCSE
average density
What average density means in Physics GCSE, as defined for AQA.
Definitions of average density
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Reference: AQA
The density of all the air above a surface, which falls as the surface rises because the densest air near the ground is left below.
A hull encloses air, which lowers the average density of the object so that it floats.
Topics that use average density
- Atmospheric pressure (AQA GCSE)
- Pressure in a fluid 2 (HT only) (AQA GCSE)
Related terms
- altitude
- collision frequency
- column of air
- column of liquid
- comparing heights
- compression by the air above
- Density
- density comparison
Using average density in the exam
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