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CAIE IGCSE Physics 2.3.1.3 Describe in Terms of Particles Why Questions

Practise explaining poor conduction in gases and non-metal solids using spaced particles, infrequent collisions and mobile electrons with CAIE IGCSE Physics questions and mark schemes.

Syllabus
2026–2028
Course
Physics 0625

Exam points

  • Explain poor conduction in gases and non-metal solids using spaced particles, infrequent collisions and absent mobile electrons.

CAIE IGCSE Physics 2.3.1.3 Describe in Terms of Particles Why Questions question 1

[Maximum number: 2]

Fig. 5.1 shows two containers, each filled with hot water.

Fig. 5.1

Fig. 5.1

The outer surface of the metal container is hot.

Explain, in terms of particles, why gases are poor thermal conductors compared to non-metal solids.

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