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Cosmology

Test Your Knowledge

To calculate your current grade in this subject area, give yourself a confidence score for how well you think you would answer each of the questions below in an exam situation.

These are not the type of questions you would typically find in a physics exam. They are designed to remind you which topics you need to revise.

For scoring, 4= Very confident, 0= No Idea. If a question is not on your syllabus, click N/A and you will not be graded on it.

Can you...

...explain why dark matter is thought to exist?

4 3 2 1 0 N/A

...explain Hubble's law in terms of blowing up a balloon?

4 3 2 1 0 N/A

...explain why Hubble's constant can be used to estimate the age of the universe?

4 3 2 1 0 N/A

...convert Hubble's constant from conventional units to SI units?

4 3 2 1 0 N/A

...explain why Hubble's constant has a large uncertainty?

4 3 2 1 0 N/A

...explain Olbers paradox?

4 3 2 1 0 N/A

...provide explanations for Olber's paradox?

4 3 2 1 0 N/A

...explain what the cosmological principle says?

4 3 2 1 0 N/A

...define big bang?

4 3 2 1 0 N/A

...explain what cosmic background radiation is and why it is there?

4 3 2 1 0 N/A

...describe the "standard model" of the universe?

4 3 2 1 0 N/A

...explain why the uniformity of background radiation does not support the standard model?

4 3 2 1 0 N/A

...define critical density?

4 3 2 1 0 N/A

...explain the fate of the universe if its density is above the critical density?

4 3 2 1 0 N/A

...-below the critical density?

4 3 2 1 0 N/A

...-equal to the critical density?

4 3 2 1 0 N/A

...explain how critical density is linked to the Hubbles constant?

4 3 2 1 0 N/A

...describe the main events that occured shortly after the Big Bang?

4 3 2 1 0 N/A

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