WavesDiagram

The Electromagnetic Spectrum

Part of Electromagnetic SpectrumGCSE Physics

This diagram covers The Electromagnetic Spectrum within Electromagnetic Spectrum for GCSE Physics. Revise Electromagnetic Spectrum in Waves for GCSE Physics with 15 exam-style questions and 15 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.

Topic position

Section 3 of 13

Practice

15 questions

Recall

15 flashcards

📊 The Electromagnetic Spectrum

Electromagnetic spectrum showing radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays with wavelengths and frequencies

Figure 1: The full electromagnetic spectrum from low-frequency radio waves to high-frequency gamma rays

ALL EM WAVES:

  • Are TRANSVERSE waves
  • Travel at the SAME SPEED in vacuum: c = 3 × 10⁸ m/s
  • Can travel through a VACUUM (don't need a medium)
  • Transfer ENERGY
  • Can be reflected, refracted, and absorbed

Keep building this topic

Read this section alongside the surrounding pages in Electromagnetic Spectrum. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Electromagnetic Spectrum

What is the speed of all electromagnetic waves in a vacuum?

  • A. 3 x 10^8 m/s
  • B. 3 x 10^6 m/s
  • C. 3 x 10^10 m/s
  • D. 340 m/s
1 markfoundation

Explain the potential dangers of ultraviolet radiation to humans.

3 marksstandard

Quick Recall Flashcards

Speed of EM waves in vacuum?
3 × 10⁸ m/s (speed of light)
Are all EM waves transverse?
Yes, all EM waves are transverse

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