Reading Quiz Section 8.3 (science) Flashcards
arrangement of all forms of electromagnetic radiation in order of frequency and wavelength
electromagnetic spectrum
low-frequency electromagnetic waves widely used for communication
radio waves
used for ship and airplane communication and navigation
longwave radio
the highest frequency of radio waves is used for what?
cellphones
waves of higher frequency and shorter wavelength than radio waves
microwaves
uses reflected radio waves to measure the distance and direction of faraway objects by emitting a brief pulse of microwaves and measuring the time between the initial pulse produces by wave reflection
radar
electromagnetic radiation with a frequency slightly higher than visible light
ultraviolet radiation
frequencies just below red visible light
infrared
most powerful form of electromagnetic radiation
gamma rays
consist of extremely high-frequency electromagnetic waves that are produced by reactions in a nucleus
gamma rays
German physicist who showed that the energy of any electromagnetic wave is directly related to frequency
Max Planck
form of electromagnetic waves with a higher frequency than UV radiation
x-rays
who discovered x-rays
Wilhelm Roentgen
three categories of UV radiation
UVA, UVB, UVC
has the lowest frequency of the three UV categories; least dangerous
UVA
