Physics GCSE
particle spacing
What particle spacing means in Physics GCSE, as defined for AQA.
Definitions of particle spacing
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Reference: AQA
The air near the ground is the densest, with its particles closest together, and at higher altitudes the particles are spaced further apart.
How closely particles are packed: in a solid they touch and are regularly arranged, while in a gas large empty spaces lie between them.
Topics that use particle spacing
- Atmospheric pressure (AQA GCSE)
- Density of materials (AQA GCSE)
Related terms
- altitude
- arrangement of particles
- average density
- collision frequency
- column of air
- comparing heights
- compression by the air above
- constant particle size
Using particle spacing in the exam
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