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Daily Concept Quiz
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1

The earth is located on one of the outer arms of the galaxy. That means there are a great many stars toward the center of the galaxy and many stars out towards the outer rim, but there should be much fewer stars above us and below us. However, when we look at the night sky, we see many, many stars fairly evenly dispersed across the sky. Why don’t we see a lot of stars in one band across the sky and very few stars above and below that band?
A)We must really be closer in toward the center of the galaxy.
B)The other stars we see are from other nearby galaxies.
C)Most of the stars we see in the sky are from a region very near us in our galaxy and so they look uniformly distributed.
D)The other “stars” are actually other galaxies that just look like stars because they are so far away.
2

A young star in our galaxy will likely be composed of
A)virtually no heavy elements.
B)a greater abundance of heavy elements than older stars.
C)more heavy elements than light elements.
3

Which is farther from the earth?
A)The Andromeda Galaxy
B)The star Rigel
C)Halley’s Comet
D)The center of the Milky Way
4

Compared to other nearby galaxies, the Milky Way is
A)a small galaxy.
B)an average size galaxy.
C)a big galaxy.
5

Which statement is correct?
A)Except for some nearby galaxies, all galaxies recede from us at the same speed.
B)Except for some nearby galaxies, galaxies that are farther away always recede faster.
C)Except for some nearby galaxies, all galaxies are stationary with respect to us.
D)All galaxies recede from us at the same speed.
6

Most of the universe is believed to be made of
A)hydrogen.
B)light elements.
C)heavy elements.
D)mysterious, unknown matter and energy.
7

Which of the following provide evidence of the Big Bang?
A)A background radiation of radio waves
B)Red shifting of distant galaxies
C)Both of these
D)Neither of these
8

The protosun that became our sun turned into a star when
A)fusion reactions began to occur.
B)it started to gravitationally collapse.
C)it started to produce visible light.
D)it started to produce heat.
9

On how many planets has life been discovered?
A)Over 100
B)On all the planets in the Solar System
C)2
D)1
E)None
10

In the Big Bang
A)the universe went through various stages of expansion and contraction.
B)the universe only expanded but the rate of expansion was fairly constant.
C)the universe only expanded but the rate of expansion varied.
D)the universe only contracted but the rate of expansion was fairly constant.
E)the universe only contracted but the rate of expansion varied.





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