2.3.4

Consequences of thermal energy transfer

Cambridge IGCSE Physics (0625)  · Unit 2: Thermal physics  · 4 flashcards

Consequences of thermal energy transfer is topic 2.3.4 in the Cambridge IGCSE Physics (0625) syllabus , positioned in Unit 2 — Thermal physics , alongside States of matter, Particle model and Gases and the absolute scale of temperature.

This topic is examined in Paper 1 (multiple-choice) and Papers 3/4 (theory), plus Paper 5 or Paper 6 (practical / alternative to practical).

The deck below contains 4 flashcards — covering the precise wording mark schemes reward.

What the Cambridge 0625 syllabus says

Official 2026-2028 spec

These are the exact learning objectives Cambridge sets for this topic. Match the command word (Describe, Explain, State, etc.) in your answer to score full marks.

  1. Explain Explain some of the basic everyday applications and consequences of conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) heating a room by convection
  2. Explain Explain some of the complex applications and consequences of conduction, convection and radiation where more than one type of thermal energy transfer is significant, including: (a) a fire burning wood or coal (b) a radiator in a car Supplement
Key Concept Flip

Explain why metal cooking pans are more suitable than ceramic cooking pans for rapidly heating water on a stove.

Answer Flip

Metals are good thermal conductors, allowing thermal energy from the stove to transfer quickly through the base of the pan to the water. Ceramic is a poor thermal conductor; therefore, thermal energy will transfer more slowly to the water.

Key Concept Flip

A heater is placed near the floor of a room. Explain how convection currents heat the entire room.

Answer Flip

The heater warms the air around it.
Warm air is less dense, so it rises.
As the warm air rises, cooler air descends to take its place near the heater.
This cooler air is then heated.
This process creates a convection current, circulating warm air throughout the room and distributing thermal energy.

Key Concept Flip

Explain how the burning of wood in a fireplace involves conduction, convection, and radiation.

Answer Flip

Conduction: Heat from the burning wood travels through the wood itself by conduction, causing more of the wood to reach its combustion temperature.
Convection: The hot gases produced by the fire rise due to convection, carrying thermal energy upwards and warming the air in the room. Cooler air replaces the rising hot air, creating a convection current.
Radiation: The burning wood emits infrared radiation, which travels outwards in all directions and directly heats objects and people in the room, even if they are not in the direct path of the convection currents.

Key Concept Flip

State two ways in which the radiator in a car uses convection to cool the engine.

Answer Flip

1. Coolant heated by the engine flows into the radiator, where it is cooled. This cooler coolant then flows back to the engine, creating a convection current.
2. Air flows over the fins of the radiator, driven by a fan or the motion of the car. This forced convection removes heat from the radiator.

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2.3.3 Radiation 3.1 General properties of waves

More topics in Unit 2 — Thermal physics

Consequences of thermal energy transfer sits alongside these Physics decks in the same syllabus unit. Each uses the same spaced-repetition system, so progress in one informs the next.

2.1.1 States of matter

4 flashcards
2.1.2 Particle model

16 flashcards
2.1.3 Gases and the absolute scale of temperature

6 flashcards
2.2.1 Thermal expansion of solids, liquids and gases

6 flashcards
2.2.2 Specific heat capacity

8 flashcards
2.2.3 Melting, boiling and evaporation

16 flashcards
2.3.1 Conduction

8 flashcards
2.3.2 Convection

4 flashcards
2.3.3 Radiation

18 flashcards

Related Physics guides

Long-read articles that go beyond the deck — cover the whole subject's common mistakes, high-yield content and revision pacing.

IGCSE Physics MCQ mistakes

Single-letter mistakes most often costing marks in Paper 1/2

IGCSE Physics high-yield questions

Equations and reasoning chains that come up every series

IGCSE Physics 2-week revision plan

Daily breakdown for the fortnight before exams

How to study this Consequences of thermal energy transfer deck

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