Red-shift (AQA GCSE Physics): Flashcards
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Practise the cards
14 cards from this deck
What red shift shows about galaxies
What red shift shows about galaxies
Galaxies are moving away from us
What red shift indicates about the universe
What red shift indicates about the universe
The universe is expanding
What expanding universe suggests about its origin
What expanding universe suggests about its origin
Universe originated from a single point
What CMB stands for
What CMB stands for
Cosmic Microwave Background Radiation
Temperature of the early universe
Temperature of the early universe
Extremely hot
What early stars and matter emitted
What early stars and matter emitted
Short-wavelength radiation
What happened to radiation as universe expanded
What happened to radiation as universe expanded
It stretched and cooled
What short-wavelength radiation transformed into
What short-wavelength radiation transformed into
Microwave radiation
Where CMB can be detected
Where CMB can be detected
No matter where we point a telescope in the sky
What CMB provides evidence for
What CMB provides evidence for
Hot, dense early universe that cooled and expanded
How Big Bang theory relates to experimental evidence
How Big Bang theory relates to experimental evidence
Aligns with all current experimental evidence
What is the Big Bang theory's status?
What is the Big Bang theory's status?
Most widely accepted model for universe origin
Unknowns in current universe understanding
Unknowns in current universe understanding
Dark matter and dark energy
What dark matter & dark energy are believed to drive
What dark matter & dark energy are believed to drive
Accelerated expansion of the universe