Red-shift (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What happens to the wavelength of light when a light source moves away from us?
What happens to the wavelength of light when a light source moves away from us?
It becomes longer
What happens to the frequency of light when a light source moves away from us?
What happens to the frequency of light when a light source moves away from us?
It becomes lower
What does blue-shift tell us about a light source?
What does blue-shift tell us about a light source?
It is moving towards us
In which year did Edwin Hubble make his discovery about red-shifted galaxies?
In which year did Edwin Hubble make his discovery about red-shifted galaxies?
1929
What did Hubble discover about the furthest galaxies?
What did Hubble discover about the furthest galaxies?
They move away the fastest
How are spectral lines in starlight best described?
How are spectral lines in starlight best described?
Fingerprints in starlight
According to the Big Bang theory, how old is the universe?
According to the Big Bang theory, how old is the universe?
13.8 billion years old
What surprising discovery did astronomers make since 1998 about the universe's expansion?
What surprising discovery did astronomers make since 1998 about the universe's expansion?
It is speeding up
What type of radiation does dark matter give off?
What type of radiation does dark matter give off?
None at all
What is dark energy's effect on the universe?
What is dark energy's effect on the universe?
Makes expansion speed up
What is the relationship between a galaxy's distance and its red-shift?
What is the relationship between a galaxy's distance and its red-shift?
Further away means greater red-shift