Physics GCSE
Evidence for an expanding universe
What Evidence for an expanding universe means in Physics GCSE, as defined for OCR.
Definition of Evidence for an expanding universe
Check what you remember
Read the wording for your board, then hide it and explain Evidence for an expanding universe in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: OCR
The pattern of speed increasing with distance is evidence that the universe is expanding.
Topics that use Evidence for an expanding universe
- 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
- Equilibrium between collapse and expansion
- Gravitational force towards the centre
- Greenhouse effect and Earth's temperature
Using Evidence for an expanding universe in the exam
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