Question detail
space-47-mcq-02. For a red-shifted absorption lines, choose the strongest evidence answer about (Physics only) Link galaxy observations to evidence for expansion of the universe. 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-47-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) Link galaxy observations to evidence for expansion of the universe by using observation, spectrum, signal, data in Galaxies, universe expansion and cosmology.
- B. space-47-mcq-02 orbitrotation error: this swaps orbit with rotation and misses evidence reasoning.
- C. space-47-mcq-02 scalemix error: this mixes planet star galaxy universe scale and loses the boundary.
- D. space-47-mcq-02 evidencegap error: this gives a vague astronomy fact but omits the named evidence stage or object.
Answer
The correct option is space-47-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) Link galaxy observations to evidence for expansion of the universe by using observation, spectrum, signal, data in Galaxies, universe expansion and cosmology.
Explanation
space-47-mcq-02 evidence: red-shifted absorption lines correctly supports (Physics only) Link galaxy observations to evidence for expansion of the universe 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) Link galaxy observations to evidence for expansion of the universe..
Answer by clearly explaining how to (Physics only) Link galaxy observations to evidence for expansion of the universe..
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