Chapter 17 Vocabulary "The Electromagnetic Spectrum"

electromagnetic waves with higher frequencies and shorter wavelengths than radio waves but lower than visible light

INFRARED RAY

a system of detecting reflected radio waves

RADAR

electromagnetic radiation that can be seen with the unaided eye

VISIBLE LIGHT

method of transmitting radio signals by changing the amplitude of the waves

AMPLITUDE MODULATION

lights that glow when an electric current causes ultraviolet waves to strike a coating inside a tube

FLUORESCENT LIGHTS

electromagnetic waves with frequencies higher than visible light, but lower than X-rays

ULTRAVIOLET LIGHT

electromagnetic waves with higher frequencies that ultraviolet rays, but shorter than gamma rays

X-RAYS

energy that travels through space in the form of electromagnetic waves

ELECTROMAGNETIC RADIATION

a tiny particle or packet of light energy

PHOTON

lights that glow when a filament inside them gets hot

INCANDESCENT LIGHT

method of transmitting radio signals by changing the frequency of the waves

FREQUENCY MODULATION

radio waves with the shortest wavelengths and highest frequencies

GAMMA RAYS

electromagnetic waves with the longest wavelengths and lowest frequencies

RADIO WAVES

radio waves with the shortest wavelengths and highest frequencies

MICROWAVES

the range of electromagnetic waves placed in a certain order

ELECTROMAGNETIC SPECTRUM