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States of matter at particle level

States of matter at particle level

Particle model comparison of solid, liquid and gas showing spacing, ordering, and motion Matter is made of tiny particles. In thermal physics, a "particle" can mean an atom or a molecule.

Solid, liquid and gas Lesson

  1. A Level
  2. /Physics
  3. /Solid, liquid and gas

Step-by-step lessons on OCR A A Level Physics Solid, liquid and gas. Each one builds up to exam-style questions. Physics is one of the most mathematically demanding A Levels -- at least 40% of the marks across the three papers require maths skills at Level 2 (GCSE) standard or above, so build calculation and graph-handling fluency alongside the conceptual content from the start.

Lessons