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34 Cards in this Set
- Front
- Back
meaning of varibales in e=mc2?
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E=enery
M=mass c=speed of light |
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type of reaction occuring in stars?
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nuclear reactions
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type of reation on earth?
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chemical reactions
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reaction on the sun?
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thermonuclear fusion
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how reations chang through a star's lifetime?
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star burning heavier elements
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compare the sun's mass to most other stars
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low-average
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compare the sun's surface temperature to most other stars
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5800 (low)
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emission spectra
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spectra of colored hands given off by hot gases
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compare the sun's mass to most other stars
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average
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meaning of e=mc2
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a small amount of mass=large4 amount of enery
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type of light most stars emit
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visible
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as luminosity increases,stars emit_frequencies of light
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uv,x-ray,gammaray (higher)
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as mass increases, luminosity....
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increases
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as mass increases, time spent in main sequence...
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decreases
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unit for temperature in stars
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kelvin(k)
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star stages that tend to be coolest on the H-R diagram
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Red Dwarf, Giants, super giants
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describe a star
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larger than a planet
luminous plasma nuclear reations |
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another word for star
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stellar
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why spectra are called element fingerprints
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each has a unique spectral emission
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compare an emission spectra of a compound and an element
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a compound will have spectral that blends the element
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describe a planet
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orbits a star
smaller than most stars not luminous chemical reactions |
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hottest color of stars
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blue
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coolest color of stars
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Red
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stars stages that tend to be hottest on the H-R diagram
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blue gant,some main sequence white dwarf
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as mass increases,stars emit____ frequences of light
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(higher) uv, gamma and x-ray
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star stages with the highest luminosity on the H-R diagram
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blue giant, supergiant
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star stages with the lowest luminosity on the H-R diagram
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white dwarfs and red dwarf
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nuclearsynthesis
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tormation of new elements from a nuclear reaction
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longest stage
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main sequence
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stage including most "average" stars
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msin seqence
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three things determind by emmission spectra
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elements found there movemen, age
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coolest spectral class
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spectral class M
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Hottest spectral class
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spectral class 0
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information that is showing on an H-R diagram
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amount of luminosity and surface temperature
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