CAIE IGCSE Physics 2.1.2.1 Particle structure of solids, liquids
Practise describing solids, liquids and gases with particle diagrams, arrangement, separation, motion and compressibility evidence.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- compare particle arrangement and motion in ice, liquid water and gases from diagrams or tables
- explain why liquids are hard to compress using close particles and large repulsive forces
- use particle spacing to explain why gases compress easily or occupy a much larger volume
2.1.2.1—Particle structure of solids, liquids question 1
[Maximum number: 1]
The molecules of most liquids are, on average, slightly further apart than the molecules of a solid.
State one other difference between the molecular structures of a solid and a liquid.
molecules of solid arranged in lattice/in organised pattern/without gaps/orderly/fixed structure
B1
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