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Particles in solids, liquids and gases

Particles in solids, liquids and gases

Particle diagrams of solid, liquid, and gas showing spacing, arrangement, and motion Matter is made of tiny particles. In a solid the particles are close together in a regular arrangement and only vibrate, in a liquid they are still close together but can slide past each other, and in a gas they are far apart and move rapidly in random directions.

Change of state Lesson

  1. IGCSE
  2. /Physics
  3. /Change of state

Step-by-step lessons on Edexcel IGCSE Physics Change of state. Each one builds up to exam-style questions. Build a strong foundation in mechanics and electricity before tackling the more mathematically demanding astrophysics and nuclear topics.

Lessons