Electromagnetic Radiation Video Graphic Organizer
Teacher’s Notes
The Electromagnetic Spectrum: Classes of Radiation by Frequency & Wavelength
microwaves
radio waves
visible light
infrared light
x-rays
ultra violet rays
gamma rays
short waves
long waves
Electromagnetic Spectrum …

is the foundation of the information
age.
 electromagnetic radiation transmit energy as waves.
 the longer EM waves carry less energy than the shorter EM waves
Electromagnetic Radiation Waves
 Wavelength, λ – the length of one
complete wave, which is
crests
measured as the length between
two consecutive crests of the
λλ
wave.

Frequency, f – the number of waves
that pass a fixed point, x, in one
x
second.
troughs

all electromagnetic radiation travels at
the speed of light, 3.00 x 108 m/
Speed, c – the speed of light, which
is 3.00 x 108 meters per second.
EM waves travel at the speed of
light.