Physics · GCSE · Matter & Particles
Particle motion in gases
Particle motion in gasesFree2:47Heddy Score 3 of 7, below the standard
What you need to know
- Gas particles move quickly in random directions and fill their container.
- Gas pressure comes from particles colliding with the walls of the container.
- At constant temperature, squeezing a gas into a smaller volume raises its pressure, because particles hit the walls more often (pV stays constant).
- Heating a gas makes its particles move faster; temperature calculations use the kelvin scale (add 273 to the Celsius value).
In this clip
Runs 2:47, from 0:09 to 2:56 of the full video.
Heddy ScoreSeven checks every clip must pass before students see it: trusted, on the map, accurate, focused, accessible, safe, and proven by students.3/7, Below the standard
See the seven stars
- Trusted source · passed. The creator's own upload, live and playable here.
- On the map · not judged yet. A teacher watched it: it mainly teaches this map topic.
- Spec-true · not judged yet. Accurate, and right for the current UK specification.
- Focused · passed. One idea, short enough to watch in one go.
- Accessible · passed. Good captions, clear sound and pictures.
- Safe for children · not judged yet. Right for 11 to 16 year olds, with no sales pitch.
- Proven · not judged yet. Earned from our students: they learn from it, find it helpful and watch it to the end.
Our students
Not enough students yet
Our own students' answers. These are what move ★7 Proven.On YouTube
How the Heddy Score works1.47M views · 24.1K likes · Professor Dave Explains 4.49M subscribers
As reported by YouTube on 2026-11-02. Not part of the Heddy Score.Why we picked it
Links the random motion of gas particles to pressure, volume and temperature in a quick, clear way.
Professor Dave Explains on YouTubechecked 2026-10-22
Plays from youtube-nocookie.com. No YouTube cookies until you press play.