Physics GCSE
particle model
What particle model means in Physics GCSE, as defined for AQA.
Definitions of particle model
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Reference: AQA
A way of explaining the behaviour of a gas in terms of its molecules, including how far apart they are and how often they strike the container walls.
A way of modelling matter by drawing particles as circles, where the marks come from arrangement and spacing rather than artistry.
Topics that use particle model
- Density of materials (AQA GCSE)
- Pressure in gases (physics only) (AQA GCSE)
Related terms
- arrangement of particles
- collision frequency
- compression and expansion
- consistent units
- constant particle size
- constant temperature
- Density
- displacement technique
Using particle model in the exam
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