Fusion in Stars (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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12 cards from this deck
Where fusion reactions occur in a protostar
Where fusion reactions occur in a protostar
Core of the protostar
What fusion reactions release
What fusion reactions release
Lots of energy
Effect of energy release on the protostar
Effect of energy release on the protostar
It becomes hotter
What a protostar eventually forms
What a protostar eventually forms
A star
Nuclei that fuse in the core
Nuclei that fuse in the core
Hydrogen nuclei
What hydrogen nuclei form when they fuse
What hydrogen nuclei form when they fuse
Helium nuclei
Type of star when two forces are balanced
Type of star when two forces are balanced
Main sequence star
Force that pulls star's matter inward
Force that pulls star's matter inward
Gravity
What gravity causes in a star
What gravity causes in a star
Gravitational collapse
What pushes star's matter outward
What pushes star's matter outward
Pressure from fusion
What pressure from fusion causes
What pressure from fusion causes
Expansion
How many forces keep a main sequence star in balance?
How many forces keep a main sequence star in balance?
Two forces (gravity and pressure from fusion)