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Syllabus

Heat Transfer — Syllabus

ICSE · Class 8 · Physics

What Heat Transfer covers in ICSE Class 8 Physics: 4 topics, for the 2026-27 session. Part of the ICSE Class 8 Physics syllabus.

61 questions32 flashcards4 formulas & key relations5 concepts

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4 Topics · ICSE Class 8 Physics · 2026-27

Topics in Heat Transfer

1

Molecules, Heat, and Temperature

  • A molecule is the smallest particle that can exist freely in nature and retains the properties of the substance.
  • A molecule is nearly 10^-10 m in size and cannot be seen even by a microscope.
  • Molecules are always in motion and also attract one another.
2

Evaporation and Boiling

  • Evaporation is the change of liquid into vapour at all temperatures from the surface.
  • Boiling is the change of liquid into vapour at a fixed temperature throughout the mass of liquid.
  • Evaporation is a slow process.
3

Latent Heat and Change of State

  • Latent heat is the heat absorbed or released during change of state without a change in temperature.
  • During latent heat change, average kinetic energy of molecules remains unchanged.
  • Only the average potential energy changes during change of state.
4

Thermal Expansion of Solids

  • Solids expand on heating and contract on cooling.
  • Solids undergo linear, superficial, and cubical expansion.
  • Linear expansion means increase in length.

Key Concepts

Central concept: Heat Transfer and Thermal Expansion

MoleculesHeatTemperatureChange of stateEvaporationBoilingThermal expansionLinear expansion

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Frequently Asked Questions

What are the important topics in Heat Transfer for ICSE Class 8 Physics?
Key topics in Heat Transfer include Molecules, Heat, and Temperature, Evaporation and Boiling, Latent Heat and Change of State, Thermal Expansion of Solids. Study these first, then practise questions on each for Class 8 exams.
How should I revise Heat Transfer for Class 8 exams?
Learn the core ideas first, then work through the 61 practice questions on Heat Transfer. Revise definitions regularly and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All ICSE Class 8 Physics Syllabus

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