Exam-style question
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BLACKBODY CURVE case: Which option best applies the AQA A-Level Physics objective "Estimate the age of the Universe from Hubble constant values." in Hubble's law using the relevant astronomical observation rather than a generic calculation?.
- A.astro-205-blackbody-curve: Use Estimate the age of the Universe from Hubble constant values. in Hubble's law.
- B.astro-205-blackbody-curve: Swap Hubble's law with a different Cosmology method.
- C.astro-205-blackbody-curve: Give a number or label without linking it to the astronomical evidence.
- D.astro-205-blackbody-curve: Ignore the observation and use a generic star or telescope statement.
Model answer
What a good answer should say
- The correct option is astro-205-blackbody-curve: Use Estimate the age of the Universe from Hubble constant values.
- in Hubble's law.
Explanation
Why this works
It is correct because the blackbody curve context supports estimate the age of the Universe from Hubble constant values. The distractors are weaker because they confuse observational evidence, distance scale, spectra, telescope resolution, brightness or cosmological reasoning with a nearby but different astrophysics idea.
Common mistake
No common mistake is linked to this question yet.