Studied by 4 peopleRadio waves
________: at the lowest energy range of the electromagnetic spectrum, with frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz.
Microwaves
________: fall in the range of the electromagnetic spectrum between radio and IR.
UV light
________: a component of sunlight; however, it is invisible to the human eye.
Visible light
________ is found in the middle of the electromagnetic spectrum, between IR and UV.
IR light
________ is invisible to human eyes, but we can feel it as heat if the intensity is sufficient (most of the thermal radiation emitted by objects near room temperature is infrared)
Night vision devices
________ using active near- infrared illumination allow people or animals to be observed without the observer being detected.
Gamma radiation
________ causes damage to living tissue, which makes it useful for killing cancer cells when applied in carefully measured doses to small regions.
IR wavelengths
________ extend from the red edge of the visible spectrum at 700 nanometers (frequency 430 THz), to 1 millimeter (300 GHz)
Microwaves
________ are used for high- bandwidth communications, radar and as a heat source for microwave ovens and industrial applications.
Radio waves
________ are used primarily for communications including voice, data and entertainment media.
Radio waves
at the lowest energy range of the electromagnetic spectrum, with frequencies as high as 300 gigahertz (GHz) to as low as 30 hertz
Microwaves
fall in the range of the electromagnetic spectrum between radio and IR
Infrared (IR)
in the range of the electromagnetic spectrum between microwaves and visible light
Visible light
the wavelengths that are visible to most human eyes
UV light
a component of sunlight; however, it is invisible to the human eye
X-rays are roughly classified into two types
soft X-rays and hard X-rays
Hard x-rays
the highest energy x-rays
Soft x-rays
the lower energy x-rays
Gamma-rays
in the range of the spectrum above soft X-rays
Note 
Flashcard (25)