Particle ModelIntroduction
The Invisible Bombardment
Part of Gas Pressure & Temperature — GCSE Physics
This introduction covers The Invisible Bombardment 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 1 of 12 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 1 of 12
Practice
13 questions
Recall
30 flashcards
📖 The Invisible Bombardment
Right now, trillions of air particles are smashing into your skin at around 500 m/s. You don't feel individual impacts because they're tiny, but together they create atmospheric pressure — about 100,000 Newtons pressing on every square metre of your body! Heat a gas and particles move faster, hitting container walls harder and more often. In a sealed container, pressure SKYROCKETS. That's why aerosol cans warn "Do not expose to heat" — they can literally explode!
Pressure Equation
p = F / A
Pressure (Pa) = Force (N) ÷ Area (m²)