Test Bank for Cosmic Perspective, The, 9th edition by Jeffrey Bennett, Chapter 1-24 | All Chapters

TEST BANK
Cosmic Perspective, The 9th Edition
By Jeffrey Bennett, Megan Donahue
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, Table of Content
PART I. DEVELOPING PERSPECTIVE
1. A Modern View of the Universe
2. Discovering the Universe For Yourself
3. The Science of Astronomy
S1. Celestial Timekeeping and Navigation
PART II. KEY CONCEPTS FOR ASTRONOMY
4. Making Sense of the Universe: Understanding Motion, Energy, and Gravity
5. Light and Matter: Reading Messages from the Cosmos
6. Telescopes: Portals of Discovery
PART III. LEARNING FROM OTHER WORLDS
7. Our Planetary System
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8. Formation of the Solar System
9. Planetary Geology: Earth and the Other Terrestrial Worlds
10. Planetary Atmospheres: Earth and the Other Terrestrial Worlds
11. Jovian Planet Systems
12. Asteroids, Comets, and Dwarf Planets: their Nature, Orbits, and Impacts
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13. Other Planetary Systems: the New Science of Distant Worlds
PART IV. A DEEPER LOOK AT NATURE
S2. Space and Time
S3. Spacetime and Gravity
S4. Building Blocks of the Universe
PART V. STARS
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14. Our Star
15. Surveying the Stars
16. Star Birth
17. Star Stuff
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18. The Bizarre. Stellar Graveyard
PART VI. GALAXIES AND BEYOND
19. Our Galaxy
20. Galaxies and the Foundation of Modern Cosmology
21. Galaxy Evolution
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22. The Birth of the Universe
23. Dark Matter, Dark Energy, and the Fate of the Universe
PART VII. LIFE ON EARTH AND BEYOND
24. Life in the Universe
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The Cosmic Perspective, 9e (Bennett et al.)
Chapter 1 A Modern View of the Universe

Section 1.1

1) About where is our solar system located within the Milky Way Galaxy?
A) at the center of the galaxy
B) about 10 percent of the way from the center of the galaxy to the edge of the galactic disk
C) about halfway from the center of the galaxy to the edge of the galactic disk
D) near the far edge of the galactic disk
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E) in the halo of the galaxy above the galactic disk
Answer: C

2) When we speak of the entire universe (as opposed to the observable universe), we mean
A) all the stars and galaxies that we can see with telescopes.
B) all material located within about 14 billion light-years of Earth.
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C) the sum total of all matter and energy.
D) all the matter in galaxies, but not the spaces between the galaxies.
Answer: C

3) Which of the following is the smallest distance?
A) diameter of a typical planet
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B) 1 light-second
C) 1 AU
D) diameter of a typical star
Answer: A
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4) Which of the following is the largest distance?
A) diameter of a typical galaxy
B) diameter of Pluto's orbit
C) distance to the nearest star (other than our Sun)
D) 1 light-year
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Answer: A

5) Which of the following statements does not use the term light-year in an appropriate way?
A) It's about 4 light-years from here to Alpha Centauri.
B) It will take me light-years to complete this homework assignment.
C) A light-year is about 10 trillion kilometers.
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D) It will take the Voyager spacecraft about 20,000 years to travel just 1 light-year.
E) The Milky Way Galaxy is about 100,000 light-years in diameter.
Answer: B


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6) One light-minute is the distance that light travels in one minute. How far is this, in kilometers?
(Recall that the speed of light is 300,000 km/s.)
A) 300,000 km
B) 18 million km
C) 100 million km
D) 1.08 billion km
E) 9.46 trillion km
Answer: B

7) One light-year is approximately
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A) the distance from the Sun to Earth.
B) the speed at which Earth orbits the Sun.
C) 10 trillion kilometers.
D) the same as one regular year.
Answer: C
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8) Light takes approximately one second to travel from Earth to the Moon. This means that the
Moon is approximately
A) 1 astronomical unit from Earth.
B) 1 light-year from Earth.
C) 3000 kilometers from Earth.
D) 300,000 kilometers from Earth.
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E) near the top of Earth's atmosphere.
Answer: D
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9) Sunlight takes about 8.4 minutes to travel from the Sun to Earth. When NASA's New
Horizons Spacecraft passed Pluto in 2015, it was about 32 AU from Earth. About how long did it
take for transmitted images of Pluto to travel from the spacecraft to Earth?
A) one Plutonian year
B) 4-1/2 hours
C) 2-1/4 days
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D) 3 weeks
E) They arrived almost instantaneously.
Answer: C

10) The Voyager 2 Spacecraft is currently on its way out of our solar system at a speed of about
50,000 kilometers per hour. It will reach the distance of the nearest star system (beyond our solar
system) in about years.
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A) 100
B) 1000
C) 10,000
D) 100,000
E) 1,000,000
Answer: D




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