The Electromagnetic Spectrum
Describe the full electromagnetic spectrum from radio waves to gamma rays, in order of increasing frequency and energy; explain that all EM waves travel at the same speed in a vacuum; and describe the uses and hazards of different regions
Typical age: 12–13 years
“If your child heard about microwaves, X-rays, and visible light all being part of the same family, could they explain what makes them different from each other and name one useful application and one risk for each?”
0 / 4 mastered
Explore graph
Needs first
- Wave Properties & TypesREQUIRED
The electromagnetic spectrum is understood as a family of transverse waves — requires the general wave properties framework
- Reflection & Refraction
Reflection and refraction of light provides entry-point experience with one member of the EM spectrum
- Observing with Light Waves
EM spectrum as astronomy tool depends on knowing the full EM spectrum from radio to gamma