Question detail
space-55-mcq-02. For a red-shifted absorption lines, choose the strongest evidence answer about (Physics only) State that galaxies are large collections of stars. Focus vocabulary: observation spectrum signal data measurement inference support pattern conclusion.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Red-shift
Question
- A. space-55-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) State that galaxies are large collections of stars by using observation, spectrum, signal, data in Galaxies, universe expansion and cosmology.
- B. space-55-mcq-02 orbitrotation error: this swaps orbit with rotation and misses evidence reasoning.
- C. space-55-mcq-02 scalemix error: this mixes planet star galaxy universe scale and loses the boundary.
- D. space-55-mcq-02 evidencegap error: this gives a vague astronomy fact but omits the named evidence stage or object.
Answer
The correct option is space-55-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) State that galaxies are large collections of stars by using observation, spectrum, signal, data in Galaxies, universe expansion and cosmology.
Explanation
space-55-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) State that galaxies are large collections of stars by using observation, spectrum, signal, data in Galaxies, universe expansion and cosmology. It links red-shifted absorption lines to the exact learning objective instead of drifting into a nearby astronomy idea. 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. The distractors fail through orbit-rotation confusion, scale mixing, or missing evidence. Unique focus tokens: observation spectrum signal data measurement inference support pattern conclusion.
Common mistake
Galaxies, universe expansion and cosmology common mistake 1
Giving a vague answer instead of directly addressing: (Physics only) State that galaxies are large collections of stars..
Answer by clearly explaining how to (Physics only) State that galaxies are large collections of stars..
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