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Electromagnetic Waves - Coggle Diagram
Electromagnetic Waves
electromagnetic waves have many uses
EM waves have different frequencies
The electromagnetic spectrum
Measuring EM waves
Radio waves and microwaves have long wavelengths and low frequencies
Radio Waves
Microwaves
light has mid range wavelengths and frequencies
infrared
ultraviolet
x and gamma rays have high frequencies and short wavelengths
electromagnetic waves have unique traits
An electromagnetic wave is a disturbance in a field
How EM waves form
sources of EM waves
electromagnetic waves can travel in a vacuum
How EM waves travel inn a vacuum
The speed of EM waves in a vacuum
Electromagnetic waves can interact with a material medium
transferring energy
converting energy from one form to another
Sun is source of most visible light
light comes from the sun and other natural sources
incandescance
some living things produce visible light
luminescence
bioluminescence
human technologies produce visible light
incandescent and florescent lighting
other types of artificial lighting
light waves interact with materials
how materials transmit light
light can be reflected transmitted and absorbed
scattering
polarazation
wavelengths determine color
color reflection and absorption
primary colors of light