Combined Science GCSE
Random molecular motion
What Random molecular motion means in Combined Science GCSE, as defined for AQA.
Definition of Random molecular motion
Check what you remember
Read the wording for your board, then hide it and explain Random molecular motion in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Gas molecules move continuously, randomly and in straight lines between collisions with each other or with the container walls.
Topics that use Random molecular motion
- Particle motion in gases (AQA GCSE)
Related terms
- Collision frequency and force on container walls
- Kinetic energy and temperature
- Pressure
- Pressure–temperature relationship at constant volume
- Temperature
- Temperature and energy
- Average kinetic energy and molecular speed
- Collision frequency and force
Using Random molecular motion in the exam
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