Physics GCSE
protostar
What protostar means in Physics GCSE, as defined for AQA.
Definition of protostar
Check what you remember
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Reference: AQA
The hot dense lump at the centre of the collapsing cloud, which is not yet a star because fusion has not started.
Topics that use protostar
- Our solar system (AQA GCSE)
Related terms
- artificial satellites
- dwarf planets
- Equilibrium
- Gravitational collapse
- nuclear fusion
- orbiting the Sun
- scale of the universe
- start of fusion
Using protostar in the exam
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