Particle ModelDeep Dive
The Particle Explanation of Gas Pressure
Part of Gas Pressure & Temperature — GCSE Physics
This deep dive covers The Particle Explanation of Gas Pressure within Gas Pressure & Temperature for GCSE Physics. Revise Gas Pressure & Temperature in Particle Model for GCSE Physics with 13 exam-style questions and 30 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 12 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 3 of 12
Practice
13 questions
Recall
30 flashcards
🔬 The Particle Explanation of Gas Pressure
Gas pressure arises from the constant, random bombardment of container walls by gas particles:
- Gas particles are in constant random motion
- They collide with container walls
- Each collision exerts a tiny force on the wall (Newton's 3rd law)
- Billions of collisions per second = measurable pressure
What happens when temperature increases:
- Particles gain kinetic energy (move faster)
- More frequent collisions (particles cover more distance per second)
- Harder collisions (more momentum transferred to walls)
- Result: Pressure increases