Electromagnetic Spectrum Flashcards
(20 cards)
Longer wavelength = __________ temperature
lower
longer wavelength = ___________ energy
lower
longer wavelength = ___________ frequency
lower
temperature increase = _________ wavelength
shorter
frequency higher = ________ wavelength
shorter
high energy = _________ frequency
higher
what is light?
a particle and a wave
when objects are moving away their light becomes ______ because…
red, wavelengths are increased and red has the longest wavelength
when objects are moving closer their light becomes _____ because…
blue, wavelengths are decreased and blue light has a shorter wavelength than red
if a galaxy is red shifting, is it moving towards us, away from us, or staying in the same spot relative to us?
it is moving away from us
if a galaxy is blue shifting, is it moving towards us, away from us, or staying in the same spot relative to us?
it is moving closer to us
when an automobile moves towards a listener, the sound of its horn seems relatively… (low pitched, high pitched, normal)
high pitched
when an automobile moves away from a listener, the sound of its horn seems relatively… (low pitched, high pitched, normal)
low pitched
the changed pitch/color of the Doppler effect is due to changes in… (wave speed, wave frequency)
wave frequency
True/False: If the object stays still, but the observer moves, the Doppler effect is still observed
True
which color of the visible light spectrum has the highest frequency?
violet
which color of the visible light spectrum has the lowest frequency?
red
what is a trough
the lowest part of a wave
what is a crest
the highest part of a wave
what is a wavelength
the space between 2 troughs or crests
