Physics GCSE
molecular collisions
What molecular collisions means in Physics GCSE, as defined for AQA.
Definition of molecular collisions
Check what you remember
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Reference: AQA
Air molecules bouncing off any surface they meet, each one exerting a tiny force on that surface.
Topics that use molecular collisions
- Atmospheric pressure (AQA GCSE)
Related terms
- altitude
- average density
- collision frequency
- column of air
- comparing heights
- compression by the air above
- extra layer of air
- force per unit area
Using molecular collisions in the exam
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