Study stars and the sun quiz Flash Cards

 
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stars and the sun quiz

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what causes the seasons to change?
the amount of direct sunlight recieved from the sun
When does the moon appear reddish?
lunar eclipse
lunar eclipse
the moon is in the shadow of the earth. the moon appears reddish
Order: Sun, earth, moon
solar eclipse
the moon comes between the sun and the earth. it blocks out the sun's light. we can only see the corona and we need special glasses to look at it
Order: Sun, moon, earth
How is the earth tilted during the summer and winter?
summer: northern hemisphere is towards the sun
winter: southern hemisphere is towards the sun
what are the longest and shortest days of the year called?
longest: sommer solstice
shortest: winter solstice
what does equinox mean?
equal night
what is a single star system? is our sin a single star system? Why?
our solar system is a single star system because it only has one star. we know this because the planets orbit around the sun, not multiple suns
what is the difference between a solar flare and a prominence?
a prominence is a large solar flare
where do solar flares usually occur?
over sunspots
what causes solar flares?
scientists believe that solar winds cause solar flares
corona
outermose layer, we see it during a solar eclipse
chromosphere
gases radiate away from the photosphere
photosphere
the source of visible light
core
innermost layer of the sun where nuclear fusion takes place
list each layer of the sun in order fo=rom innermost to outermost
core
photosphere
chromosphere
corona
what 2 gases are the stars made up of?
hydrogen and helium
how is our sun predicted to die off?
our sun is a less massive star and is expected to turn into a black dwarf
how much longer is our sun going to live?
5 billion years
how old is our sun?
about 5 billion years old
what size is our sun?
medium sized star
what color are red giants and supergiants?
red
what is a red giant or supergiant?
a star at the end of its life, where the gas begins to expand around the star, causing the star to grow and turn red
black hole
complete collapse of the star; nothing can escape, not even light
neutron star
spinning very fast
supernova
collapse of the core
black dwarf
dead star
white dwarf
using the energy it has left, not creating any more
planetary nebula
star ejects all of the gas surrounding it
red giant/supergiant
the star grows and turns red
main sequence
growing stars
protostar
sphere at the center of the flattened disk
nebula
cloud of dust and gas
list each stage of the star in order
nebula
protostar
main sequence
red giant/supergiant
planetary nebula
Less massive star: white dwarf
black dwarf
More massive star: supernova
neutron star
OR..............
Black Hole
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