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Thermal processes
Practice Questions

20 CIE IGCSE Physics questions on Thermal processes, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on Thermal processes

Question 1 · 1 mark · Difficulty 1/3

Which of the following correctly describes the process of conduction in a metal rod?

  1. Energy is transferred by the movement of free electrons and vibrations of atoms
  2. Energy is transferred only by the circulation of heated fluid
  3. Energy is transferred by electromagnetic waves through a vacuum
  4. Energy is transferred only by the random movement of air molecules
Show answer & explanation
✓ Answer: A — Energy is transferred by the movement of free electrons and vibrations of atoms
Award 1 mark for identifying that conduction in metals involves both free electron movement and lattice vibrations. B is incorrect — this describes convection, not conduction. C is incorrect — this describes radiation, which does not require a medium. D is incorrect — this describes convection in gases, not conduction in solids.
Question 2 · 1 mark · Difficulty 1/3

A vacuum flask is designed to keep liquids hot for extended periods. Which feature of the flask reduces heat loss by radiation?

  1. The plastic stopper at the top
  2. The vacuum between the double walls
  3. The silvered surfaces on the glass walls
  4. The protective outer casing
Show answer & explanation
✓ Answer: C — The silvered surfaces on the glass walls
Award 1 mark for identifying that silvered (shiny) surfaces are poor emitters and poor absorbers of infrared radiation. A is incorrect — the stopper reduces heat loss by convection and evaporation. B is incorrect — the vacuum prevents conduction and convection but not radiation. D is incorrect — the outer casing provides mechanical protection, not thermal insulation.
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20 questions · 25 min · free

CIE IGCSE Physics: Thermal processes FAQ

How many CIE IGCSE Physics questions on Thermal processes are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Thermal processes for CIE IGCSE Physics, with new questions added every week. Each question gives you instant feedback and a full examiner-style mark scheme that tells you exactly what would earn marks on a real CIE paper. The questions span the full difficulty range — from straightforward recall (level 1) right up to multi-step reasoning and evaluation (level 3) — so the bank works for first-pass revision and final exam-week stress testing alike.
Is Kramizo free for CIE IGCSE students preparing for Physics?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Thermal processes practice with other Physics topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Thermal processes questions aligned to the official CIE IGCSE Physics syllabus?
Every question is written against the published CIE IGCSE Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Thermal processes typically tested on CIE IGCSE Physics papers?
Thermal processes appears across multiple question types on real CIE IGCSE Physics papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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