Physics GCSE
Equilibrium between collapse and expansion
What Equilibrium between collapse and expansion means in Physics GCSE, as defined for OCR.
Definition of Equilibrium between collapse and expansion
Check what you remember
Read the wording for your board, then hide it and explain Equilibrium between collapse and expansion in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
Energy released in fusion raises the pressure and pushes outward while gravity pulls inward, and when the two balance the star is in equilibrium.
Topics that use Equilibrium between collapse and expansion
- Beyond Earth (OCR GCSE)
Related terms
- Absorption and emission of radiation
- Artificial satellites: geostationary and polar orbits
- Constant speed with changing direction
- Cosmic microwave background radiation
- Effect of the atmosphere on electromagnetic radiation
- Gravitational force towards the centre
- Greenhouse effect and Earth's temperature
- Inverse relationship between orbital speed and radius
Using Equilibrium between collapse and expansion in the exam
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