This introduction covers The Same Wave, Different Energies within Electromagnetic Spectrum for GCSE Physics. Revise Electromagnetic Spectrum in Waves for GCSE Physics with 17 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 1 of 13 in this topic. Use this introduction to connect the idea to the wider topic before moving on to questions and flashcards.
📖 The Same Wave, Different Energies
Here's something mind-bending: the light you see, the WiFi carrying your messages, the X-rays seeing your bones, and the microwaves heating your food are ALL the same thing — electromagnetic waves! They only differ in wavelength and frequency. Radio waves can be kilometres long; gamma rays are smaller than atoms. All travel at 300,000,000 m/s through space. The whole spectrum is just one continuous family of energy-carrying waves!
Practice questions for Electromagnetic Spectrum
What is the speed of all electromagnetic waves in a vacuum?
Explain the potential dangers of ultraviolet radiation to humans.
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