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AQA · GCSE · Chemistry

Energy Changes
Practice Questions

20 AQA GCSE Chemistry questions on Energy Changes, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Energy Changes.

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Question 1 · 1 mark · Difficulty 1/3

Which of the following correctly describes an exothermic reaction?

  1. Energy is transferred from the surroundings to the reaction
  2. Energy is transferred from the reaction to the surroundings
  3. Bond breaking releases more energy than bond forming absorbs
  4. The temperature of the surroundings decreases during the reaction
Show answer & explanation
✓ Answer: B — Energy is transferred from the reaction to the surroundings
In an exothermic reaction, energy is transferred from the reacting chemicals to the surroundings, causing the temperature of the surroundings to increase. Option A describes an endothermic reaction. Option B describes the temperature change seen in endothermic reactions. Option D reverses the correct relationship — in exothermic reactions, bond forming releases more energy than bond breaking absorbs.
Question 2 · 1 mark · Difficulty 1/3

On a reaction profile diagram for an endothermic reaction, which statement is correct?

  1. The activation energy is always larger than in exothermic reactions
  2. The reactants and products are at the same energy level
  3. The products are at a lower energy level than the reactants
  4. The products are at a higher energy level than the reactants
Show answer & explanation
✓ Answer: D — The products are at a higher energy level than the reactants
In an endothermic reaction, energy is absorbed, so the products have more energy than the reactants, appearing higher on the reaction profile. Option B describes an exothermic reaction profile. Option C is incorrect because the relative size of activation energy is not determined by whether a reaction is exo- or endothermic. Option D would indicate no overall energy change.
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20 questions · 25 min · free

AQA GCSE Chemistry: Energy Changes FAQ

How many AQA GCSE Chemistry questions on Energy Changes are there on Kramizo?
Kramizo currently has 20 exam-board-aligned practice questions on Energy Changes for AQA GCSE Chemistry, 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 AQA 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 AQA GCSE students preparing for Chemistry?
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 Energy Changes practice with other Chemistry topics or even switch to a totally different AQA 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 Energy Changes questions aligned to the official AQA GCSE Chemistry syllabus?
Every question is written against the published AQA GCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real AQA 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 AQA.
How is Energy Changes typically tested on AQA GCSE Chemistry papers?
Energy Changes appears across multiple question types on real AQA GCSE Chemistry 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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