Learning objective
(Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths.
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Topic
Red-shift
Subtopic
Red-shift and evidence for an expanding universe
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Quick explanation
(Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths
- This point belongs to Red-shift, especially Red-shift and evidence for an expanding universe.
- You need to be able to (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths.
- The key ideas to know are physics only and wavelength.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Red-shift and evidence for an expanding universe to exam-style questions, flashcards, and revision notes for Red-shift.
Quick student answer
What should you know about (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths?
Direct answer
In Physics, this page helps you answer questions about (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths within Red-shift. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are space-57-term-01 classification Red-shift and evidence for an expanding universe and space-57-term-02 evidence Red-shift and evidence for an expanding universe.
Key terms
- space-57-term-01 classification Red-shift and evidence for an expanding universe: A classification cue for distant galaxy spectrum: it supports (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths by linking the correct Space Physics object, stage, motion or evidence to Red-shift and evidence for an expanding universe. Red shift means light from distant galaxies has increased wavelength; together with cosmic microwave background radiation it supports an expanding universe from the Big Bang. Cue words: identify classify category label definition object type membership distinction.
- space-57-term-02 evidence Red-shift and evidence for an expanding universe: A evidence cue for red-shifted absorption lines: it supports (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths by linking the correct Space Physics object, stage, motion or evidence to Red-shift and evidence for an expanding universe. Red shift means light from distant galaxies has increased wavelength; together with cosmic microwave background radiation it supports an expanding universe from the Big Bang. Cue words: observation spectrum signal data measurement inference support pattern conclusion.
Common trap
Red-shift and evidence for an expanding universe common mistake 1: Answer by clearly explaining how to (Physics only) State that light from galaxies moving away from Earth is shifted to longer wavelengths..
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Revision notestopic notes
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Open revision notesRelated learning objectives
- (Physics only) Describe red shift as an increase in the observed wavelength of light from a galaxy.
Red-shift and evidence for an expanding universe
- (Physics only) Explain that the further away a galaxy is, the faster it is moving away.
Red-shift and evidence for an expanding universe
- (Physics only) Explain that more distant galaxies show a greater red shift.
Red-shift and evidence for an expanding universe
- (Physics only) State that red shift provides evidence that the universe is expanding.
Red-shift and evidence for an expanding universe
- (Physics only) Link red shift to the idea that galaxies are moving away from each other.
Red-shift and evidence for an expanding universe