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The Electromagnetic Spectrum
Practice Questions

19 CXC CSEC Physics questions on The Electromagnetic Spectrum, each with instant feedback and a full examiner-style mark scheme.

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Try 2 sample questions on The Electromagnetic Spectrum

Question 1 · 1 mark · Difficulty 1/3

What is the correct order of the EM spectrum from longest to shortest wavelength?

  1. Gamma, X-ray, UV, visible, IR, microwave, radio
  2. Radio, microwave, infrared, visible, UV, X-ray, gamma
  3. Visible, UV, IR, radio, microwave, gamma, X-ray
  4. Gamma, radio, microwave, visible, X-ray, UV, IR
Show answer & explanation
✓ Answer: BRadio, microwave, infrared, visible, UV, X-ray, gamma
From longest to shortest wavelength: Radio → Microwave → Infrared → Visible → Ultraviolet → X-rays → Gamma rays.
Question 2 · 1 mark · Difficulty 1/3

What do all electromagnetic waves have in common?

  1. They all need a medium
  2. They all travel at the same speed in a vacuum (3 × 10⁸ m/s) and are transverse
  3. They are all visible
  4. They are all longitudinal
Show answer & explanation
✓ Answer: BThey all travel at the same speed in a vacuum (3 × 10⁸ m/s) and are transverse
All EM waves are transverse, travel at 3 × 10⁸ m/s in a vacuum, and can travel without a medium. They differ in wavelength and frequency.
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CXC CSEC Physics: The Electromagnetic Spectrum FAQ

How many CXC CSEC Physics questions on The Electromagnetic Spectrum are there on Kramizo?
Kramizo currently has 19 exam-board-aligned practice questions on The Electromagnetic Spectrum for CXC CSEC 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 CXC 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 CXC CSEC 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 The Electromagnetic Spectrum practice with other Physics topics or even switch to a totally different CXC 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 The Electromagnetic Spectrum questions aligned to the official CXC CSEC Physics syllabus?
Every question is written against the published CXC CSEC Physics specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CXC 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 CXC.
How is The Electromagnetic Spectrum typically tested on CXC CSEC Physics papers?
The Electromagnetic Spectrum appears across multiple question types on real CXC CSEC 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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