19 terms

Light Quiz Review

STUDY
PLAY
Radio Waves
Longest Wavelength
Gamma Waves
Shortest Wavelength
Light Speed: 300,000,000 m/s
Speed of all types of radiation.
non-mechanical
Light waves are made of photons so they are a wave that needs no medium.
mechanical
Waves that need a medium.
refraction
When a wave changes speed through a medium.
White light
Light made of all 7 colors.
Red
The longest wavelength of visible light
Violet
The shortest wavelength of visible light.
Larger Lenses
Way to make a telescope collect more light so you can see darker objects.
Thicker Lenses
Way to make a telescope zoom more.
chromatic aberration
Colors get messed up in a refracting telescope.
spectroscopy
Using spectra to study light sources.
emission spectrums
Light produced by specific elements used to detect what stars are made of.
parallax
Using a triangle to tell how far away something is.
apparent magnitude
The brightness a star has from Earth.
absolute magnitude
The actual brightness of a star.
reflector
A telescope that uses mirrors.
refractor
A telescope that uses lenses.
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