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Speed of Light and Cosmic Distances Quiz

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Speed of Light and Cosmic Distances: a General level Astronomy quiz. Test your knowledge with 11 questions!

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Questions

Question 1

Approximately how many years would it take to reach Proxima Centauri at light speed?

A 4 years

B 50 years

C 1,000 years

D 100 years

Question 2

What unit do astronomers use to measure distances between stars?

A Light-years

B Centimeters

C Kilometers

D Miles

Question 3

If we look at a star 10 light-years away, what are we seeing?

A The star as it is now

B A future version of the star

C The star 10 years ago

D The star 100 years ago

Question 4

How far is one light-year in kilometers roughly?

A 9.5 trillion km

B 1 million km

C 500 billion km

D 20 trillion km

Question 5

What term describes the time delay in space communication?

A Time dilation

B Light lag

C Signal echo

D Speed drift

📋 This quiz has 11 questions in total.