Particle ModelIntroduction

The Invisible Bombardment

Part of Gas Pressure & Temperature · GCSE GCSE Physics revision

This introduction covers The Invisible Bombardment within Gas Pressure & Temperature for GCSE Physics. Revise Gas Pressure & Temperature in Particle Model for GCSE Physics with 19 exam-style questions and 30 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. 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

19 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)

Keep building this topic

Read this section alongside the surrounding pages in Gas Pressure & Temperature. That gives you the full topic sequence instead of a single isolated revision point.

How Temperature Affects Gas Pressure The Particle Explanation of Gas Pressure Pressure in Liquids — Depth and Upthrust

Practice Questions for Gas Pressure & Temperature

A sealed gas container is heated. What happens to the pressure of the gas inside?

A. Pressure decreases
B. Pressure stays the same
C. Pressure increases
D. Pressure first increases then decreases

1 markfoundation

A sealed gas cylinder is heated. Explain, using particle theory, why the pressure of the gas increases when the temperature increases.

3 marksstandard

Quick Recall Flashcards

Pressure equation

p = F/A

What is pressure?

Force per unit area (force divided by area)

19 questions on Gas Pressure & Temperature — practise free

Instant marking, adaptive difficulty, and 30 spaced repetition flashcards. Free until your GCSEs.

Try PrepWise Free

Back to

Gas Pressure & Temperature

How Temperature Affects Gas Pressure