life cycle of stars 0.0 / 5 ? PhysicsAstronomyGCSEAQA Created by: OepowellCreated on: 18-03-16 18:51 what is the name of the first star? Prostar 1 of 12 How is a prostar made? clouds of dust and gas are spiralled together by gravity 2 of 12 what is the second stage of a star? main sequence star 3 of 12 why is a main sequence star stable? heat created by nuclear fusion provides outward pressure which balances our force of gravity. 4 of 12 why does the main sequence star remain there for so long? large amounts of hydrogen. 5 of 12 is a red super star bigger or smaller than the sun? bigger 6 of 12 why does a red super star become red? the surface cools 7 of 12 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. 8 of 12 what dose the exploding of the supernova create? elements heavier than iron which are ejected into the universe and form new stars and planets. 9 of 12 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 10 of 12 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. 11 of 12 what comes after the planetary nebula white dwarf- after dust and gas ejected, hot, dense core left. 12 of 12
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