The Life Cycle of Solar Mass Stars (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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What stars form from
What stars form from
Clouds of dust and gas (nebulae)
Nebulae definition
Nebulae definition
Clouds of dust and gas in galaxies
Force drawing star particles together
Force drawing star particles together
Gravitational attraction
Effect of compression on temperature & pressure in cloud
Effect of compression on temperature & pressure in cloud
They both increase
Nuclear fusion in stars
Nuclear fusion in stars
Hydrogen nuclei fuse to form helium nuclei
What fusion releases
What fusion releases
Energy
Equilibrium in star formation
Equilibrium in star formation
Outward fusion pressure balances inward gravity
Protostar
Protostar
Forming star before becoming main sequence star
Main sequence star
Main sequence star
Stable star fusing hydrogen into helium
How long main sequence stars last
How long main sequence stars last
Billions of years
Effect of hydrogen fuel exhaustion
Effect of hydrogen fuel exhaustion
Star becomes unstable and collapses
Supernova
Supernova
Massive explosion expelling star's outer layers
Neutron star
Neutron star
Extremely dense core after supernova
Black hole formation
Black hole formation
Massive core collapses further after supernova
Planetary nebula
Planetary nebula
Shell of gas surrounding remaining core