This memory aid covers Memory Aid 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 8 of 12 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.
Topic position
Section 8 of 12
Practice
13 questions
Recall
30 flashcards
🧠 Memory Aid
Celsius to Kelvin: Add 273. Remember with: "Kelvin is Celsius + 273 — K is above 0, C starts at −273." Or simply: K = C + 273.
Gas pressure particle explanation — the 3-step answer:
- Particles move faster (higher kinetic energy)
- More frequent collisions with walls
- Greater force per collision → higher pressure
Pressure in liquids: "Deeper = Heavier burden above = Higher pressure." The diver analogy: the deeper you swim, the more water is pressing down on you from above.
Absolute zero: −273°C. Think "−273 is the floor — you can't go lower." Like the lowest floor of a building. Everything above is a positive Kelvin value.