Physics A-Level
Planet
What Planet means in Physics A-Level, as defined for OCR.
Definition of Planet
Check what you remember
Read the wording for your board, then hide it and explain Planet in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Orbits a star, is massive enough for gravity to make it approximately spherical, and has cleared other bodies from its orbital neighbourhood.
Topics that use Planet
- Stars (OCR A-Level)
Related terms
- Black hole
- Chandrasekhar limit
- Electron degeneracy pressure
- Gravitational collapse
- HR diagram
- Main sequence
- Neutron star
- Planetary nebula
Using Planet in the exam
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