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Electromagnetic Spectrum Flashcards | StudBud
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Electromagnetic Spectrum
Electromagnetic Spectrum
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Earth Science
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1
What is the upper atmosphere called when radio waves meet and spread out from Earth to space?
exosphere
ionosphere
tectonic plate
mantle
2
In a dark room white and fluorescent things glow. This effect is produced by something called
Visible Spectrum
Black Light
Gamma Ray
Glow effect
3
Waves of this frequency can be transmitted over very long distances due to a phenomenon called
Fire rainbows
Skywave Propagation
Shortwaves
Volcanic Lightning
4
All electromagnetic waves have the same
length
speed
frequency
color
5
Why can AM radio waves travel a longer distance than FM radio waves?
FM waves have longer wavelengths
They can't bounce off the atmosphere
AM waves have longer wavelengths
They can bounce off the atmosphere
6
How do scientists represent wavelength
λ = c / ν (y=waves,c=constant, and v=velocity)
λ = c / ν (y=wavelength,c=speed of light, and v=frequency)
v=λ/c (y=wavelength,c=speed of light, and v=frequency)
c=λ/v (y=wavelength,c=speed of light, and v=frequency)
7
Every microwave oven has a device called a
heater
cavity magnetron
popcorn button
spinning tray
8
A process that uses radio waves and magnetism to make images of tissues in the body is called
Magnet Radio Imaging
Spectrograms
Thermograms
Magnetic Resonance Imaging
9
Which electromagnetic radiation has the lowest frequency?
Radio Waves
UV Rays
Gamma Rays
X-Rays
10
What kind of light can bees see that you can't?
Infrared
UV
None
Visible
11
What do you wear so gamma rays don't damage your organs?
Lead Apron
Blanket
Steel T-shirt
Magnetic Apron
12
This can release more energy in 10 seconds than the Sun will release in its 9 billion year life
Gamma Ray Bursts
Solar Storm
Black holes
Supernovas
13
Parts of the Electromagnetic Spectrum in order form smallest to largest wavelength
Gamma, X-Ray, UV, Infrared, Visible, Microwave, Radio wave
Gamma, UV, X-Ray, Visible, Infrared, Microwave, Radio wave
Gamma, X-Ray, Visible, UV, Infrared, Microwave, Radio wave
Gamma, X-Ray, UV, Visible, Infrared, Microwave, Radio wave
14
Substances that absorb photons of ultraviolet light and then emit photons are chemicals called
Gamma Rays
Radiation Therapy
Microwave
Phosphors
15
What are some practical purposes for Black light?
Making robots
Analyze crime scenes
Stopping diseases
Detect money and antique forgeries
16
How are radio signals broadcasted?
sound→electric current→radio waves→electric current→sound
electric current→radio waves→electric current→sound
sound→electric current→radio waves→sound
sound→radio waves→electric current→sound
