life cycle of stars

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  • Created by: Oepowell
  • Created on: 18-03-16 18:51
what is the name of the first star?
Prostar
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How is a prostar made?
clouds of dust and gas are spiralled together by gravity
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what is the second stage of a star?
main sequence star
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why is a main sequence star stable?
heat created by nuclear fusion provides outward pressure which balances our force of gravity.
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why does the main sequence star remain there for so long?
large amounts of hydrogen.
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is a red super star bigger or smaller than the sun?
bigger
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why does a red super star become red?
the surface cools
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what comes after the red super giant? how is it created?
1. the supernova 2. created when big stars undergo fusion, expand and contract and then explode.
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what dose the exploding of the supernova create?
elements heavier than iron which are ejected into the universe and form new stars and planets.
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what are the new stars created? (2)
neutron star- dust and gas is ejected leaving a very dense core. 2. black hole if star is big enough
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what comes after the red giant? describe it
Planetary nebula- a small/medium star that becomes unstable and ejects its outer layer of dust and gas.
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what comes after the planetary nebula
white dwarf- after dust and gas ejected, hot, dense core left.
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Other cards in this set

Card 2

Front

How is a prostar made?

Back

clouds of dust and gas are spiralled together by gravity

Card 3

Front

what is the second stage of a star?

Back

Preview of the front of card 3

Card 4

Front

why is a main sequence star stable?

Back

Preview of the front of card 4

Card 5

Front

why does the main sequence star remain there for so long?

Back

Preview of the front of card 5
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