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HomeAQA GCSE PhysicsResistors: fixed, variable, LDR, thermistor and diodes
AQA · GCSE · Physics

Resistors: fixed, variable, LDR, thermistor and diodes
Practice Questions

15 AQA GCSE Physics questions on Resistors: fixed, variable, LDR, thermistor and diodes, 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 Resistors: fixed, variable, LDR, thermistor and diodes.

Try 2 sample questions on Resistors: fixed, variable, LDR, thermistor and diodes

Question 1 · 1 mark · Difficulty 2/3

The resistance of a light-dependent resistor (LDR) changes with:

  1. Light intensity
  2. Temperature
  3. Sound
  4. Pressure
Show answer & explanation
✓ Answer: ALight intensity
An LDR's resistance depends on light: in bright light its resistance is low; in darkness it is high.
Question 2 · 1 mark · Difficulty 2/3

As the light on an LDR increases, its resistance:

  1. Decreases
  2. Increases
  3. Stays the same
  4. Becomes infinite
Show answer & explanation
✓ Answer: ADecreases
More light lowers an LDR's resistance, which is useful in automatic lighting circuits.
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AQA GCSE Physics: Resistors: fixed, variable, LDR, thermistor and diodes FAQ

How many AQA GCSE Physics questions on Resistors: fixed, variable, LDR, thermistor and diodes are there on Kramizo?
Kramizo currently has 15 exam-board-aligned practice questions on Resistors: fixed, variable, LDR, thermistor and diodes for AQA GCSE 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 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 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 Resistors: fixed, variable, LDR, thermistor and diodes practice with other Physics 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 Resistors: fixed, variable, LDR, thermistor and diodes questions aligned to the official AQA GCSE Physics syllabus?
Every question is written against the published AQA GCSE Physics 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 Resistors: fixed, variable, LDR, thermistor and diodes typically tested on AQA GCSE Physics papers?
Resistors: fixed, variable, LDR, thermistor and diodes appears across multiple question types on real AQA GCSE 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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