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8th Grade Chapter 17

The Electromagnetic Spectrum

QuestionAnswer
electromagnetic waves transfer electromagnetic radiation
in a vacuum, all electromagnetic waves have the same speed
an incandescent light bulb glows when a filament inside it gets hot
FM signals travel as changes in the frequency of the wave
fluorescent bulbs are coated on the inside with a powder
waves with some electrical properties and some magnetic properties are electromagnetic waves
radio waves electromagnetic waves with the longest wavelengths and lowest frequencies
neon light bulbs commonly used in advertising signs and decoration
speed of an electromagnetic wave equal to wavelength times frequency
gamma rays electromagnetic waves with the highest frequencies
ultraviolet rays help your body produce vitamin D
microwaves kind of waves that cellular telephones use to transmit and receive signals
polarized light light that has passed through a polarizing filter
spectroscope an instrument used to view different colors of light produced by each type of light bulb
thermograms the images made by an infrared camera
photon a packet of light energy
infrared rays can be sensed by humans
ultraviolet rays can be used to kill bacteria
electromagnetic waves can transfer energy without a medium
electromagnetic spectrum the range of electromagnetic waves placed in a certain order
Created by: Mrs. Gordon
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