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Electromagnetic Wave
Electromagnetic Waves
Term | Definition |
---|---|
electromagnetic wave | a transverse wave that transmits electrical and magnetic energy through space at the speed of light |
electromagnetic spectrum | the complete range of electromagnetic waves placed in order of increasing frequency |
radio waves | electromagnetic waves with the longest wavelengths and lowest frequencies |
microwaves | radio waves with the shortest wavelengths and highest frequencies |
infrared rays | electromagnetic waves with wavelengths shorter than radio waves, but longer than visible light |
visible light | electromagnetic waves that are visible to the human eye |
ultraviolet rays | electromagnetic waves with wavelengths shorter than visible light, but longer than x-rays |
x-rays | electromagnetic waves with wavelengths shorter than ultraviolet rays, but longer than gamma rays |
gamma rays | electromagnetic waves with the shortest wavelengths and the highest frequencies |
Colors | parts of light that are reflected from an object |
Diffraction | the bending and spreading of waves as they move around a barrier or through an opening |
Light | energy that we can see |
Reflection | when light bounces off a medium |
Refraction | light moves through an object and bends |