Which structure in the universe has the largest diameter? * a star
a solar system
an asteroid
a galaxy
2. Miranda was gazing at the stars while she was on a camping trip. She noticed that many stars had a similar bluish-white color. What property was MOST LIKELY the reason these stars looked alike? *
size
distance from Earth
temperature
composition
3. Which of the statements listed below is TRUE of the stars in the Milky Way Galaxy? *
Most of the stars in our galaxy are the same temperature.
Most of the stars in our galaxy are made of hydrogen gas.
Most of the stars in our galaxy are the same size.
Most of the stars in our galaxy are the same distance from Earth.
4. An astronomer observes a star's position change as it orbits another star. The scientist uses the star's known distance from Earth to determine when the position changed. What did the distance tell the scientist? *
the magnitude of the star
the amount of time it took the star's light to reach the Earth
the type of material in the star's core
the star's gravity
5. Which of the following is described as a bright, hot sphere of gas? *
asteroid
moon
planet
star
6. Which of the following labels is most appropriate for the Milky Way? *
galaxy
local group
solar system
universe
7. In any discussion of the topic of stars, the term nebula is used to refer to which of the following? *
a stage in the life cycle of a star
the temperature of stars
the size of stars
the location of the stars
8. What is the basis used for classifying galaxies? *
appearance
composition
size
temperature
9. Apart from planets, which other bodies may orbit the Sun in the solar system? *
comets
stars
nebulae
galaxies
10. Which star is the dimmest star shown on the H-R diagram? *
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Rigel
Capella
Barnard's Star
Van Maanen's Star
11. This star is a giant. *
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Pollux
Algol
Sirius
Deneb
12. These stars range from red to blue: *
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Main Sequence
Giants
White Dwarfs
Supergiants
13. Our yellow star, the Sun, has an absolute magnitude of: *
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+5
-5
+1
-1
14. Which star is both the brightest and the hottest star on the diagram? *
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Betelgeuse
Barnard's Star
Zeta Eridani
Deneb
15. Canopus is a yellow star with surface temperature of about... *
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6,800 F
10,000 C
6,800 C
20,000 F
16. Which of the following is arranged in the correct order from smallest to largest? *
universe, galaxies, solar systems, stars and planets
solar systems, planets, stars, galaxies, and universe
planets, stars, galaxies, solar systems and universe
planets, stars, solar systems, galaxies and universe
17. One component of the universe that is made of ice and rock and comes from an area known as the Oort Cloud is called a/an... *
asteroid
meteor
comet
quasar
18. All of the following characteristics can be used to classify stars except... *
temperature
color
brightness
distance
19. Magnitude refers to a star's... *
distance
color
temperature
brightness
20. Which tool is used by astronomers studying the composition of stars by separating the light from the star into colored lines? *
telescope
spectroscope
microscope
hand lens
21. Another astrological term known as space debris or space junk is... *
asteroids
meteoroids
comet
quasar
22. A component of the universe that is a powerful source of light energy is called? *
quasars
asteroids
meteoroids
comets
23. These are made of rock and metal and come from inside the solar system. *
quasars
meteoroids
asteroids
comets
24. Which chart correctly identifies the galaxies pictured? *
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F.

G.

H.

J.
25. What color is Altair? *
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blue
red
yellow
white
26. Which star is HOTTER than Vega? *
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Canopus
Spica
Pollux
Tau Ceti
27. Which star is BRIGHTER than Vega? *
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Polaris
Sirius
Sun
Procyon B
28. Which star is brighter than the Sun and dimmer than Rigel? *
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Tau Ceti
Arcturas
Sirius B
Barnard's Star
29. Which star is considered a Main Sequence star? *
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Rigel
Polaris
Vega
Pollux
30. A star's life would follow which order? *
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white dwarf, main sequence, giant
main sequence, white dwarf, giant
main sequence, giant, white dwarf
giant, main sequence, white dwarf