p7

life cycle of a star

?
what star is formed when the dust and gas cloud is dense enough?
Protostar
1 of 9
what type of fusion occurs after this?
Hydrogen fusion
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what type of star is formed when hydrogen fusion releases lots of energy and the star is stable?
Main sequence
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what happens when hydrogen in the core finishes for a big star?
main sequence star becomes red supergiant
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what happens when hydrogen finishes in a small star?
main sequence turns into red giant
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what happens next?
helium fusion starts
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what happens when there isn't enough helium left for helium fusion?
red giant turns into white dwarf and cools and red supergiant carries on fusing other elements
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what are stars formed from?
Dust and gas
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What happens when a red supergiant has fused all of its core into iron?
the star explodes as a supernova and either becomes a neutron star or a blackhole
9 of 9

Other cards in this set

Card 2

Front

what type of fusion occurs after this?

Back

Hydrogen fusion

Card 3

Front

what type of star is formed when hydrogen fusion releases lots of energy and the star is stable?

Back

Preview of the front of card 3

Card 4

Front

what happens when hydrogen in the core finishes for a big star?

Back

Preview of the front of card 4

Card 5

Front

what happens when hydrogen finishes in a small star?

Back

Preview of the front of card 5
View more cards

Comments

Chloe

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theres not a lot about p7 just stars....

Lucy

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good quiz, thanks!!

benjamin carr

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Chloe wrote:

theres not a lot about p7 just stars....

sorry but one of the p7 units are stars

Stephen Thornley

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chill out kids its only a Mushroom. If you would like too know how to dance the fish and chip shop ballet which is going to apear on the royal variety this year. Look forward to seeing you all there. Rember 5 a day keeps luke away. :D see you on the other side :S

Michael Crossman

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"teh life cycle" ^^

George

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Nebulae the gas and dust clouds are made of star dust so stars are made of star dust. 

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