Understanding the Electromagnetic Spectrum
The electromagnetic spectrum is the complete range of light waves that travel through space. Some waves are visible to us, while most are invisible.
What the Spectrum Includes
The spectrum contains radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Each type has a different wavelength and energy level.
How These Waves Work
All electromagnetic waves move at the speed of light. Their wavelength and frequency determine their properties, from gentle radio signals to powerful gamma rays.
Where We See the Spectrum in Daily Life
Radios, Wi-Fi, microwaves, sunlight, medical imaging, and remote controls all rely on different parts of the electromagnetic spectrum to function.
Why the Spectrum Matters
The spectrum helps scientists study stars, diagnose health problems, send information, and understand how energy travels across the universe.
The Simple Takeaway
The electromagnetic spectrum is the full range of light waves. Some we see, others we use, and all carry energy across space.