ASTR 111 Lecture Notes - Lecture 1: Virgo Supercluster, Local Group, Scientific Notation

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31 Oct 2016

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ASTR 111 Quiz 1 Answers

Question 1

Which of the following has your "address" in the correct order?

you, Earth, solar system, Local Group, Local Supercluster, Milky Way

you, Earth, solar system, Milky Way, Local Group, Local Supercluster

you, Earth, solar system, Local Group, milky Way, Local Supercluster

you, Earth, Local Group, local Supercluster, solar system, Milky Way

Question 2

Express the following number in scientific notation: 15000000000

1.5 x 10^10

15 x 10^10

1.5 x 10^ 11

none of the above

Question 3

The light you see coming from the star (other than the Sun) that is closest to us

left the star about 4 1/2 minutes ago

left the star 4 1/2 billion years ago

left the star about 4 1/2 years ago

left the star the instant we see it

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