KEY TERMS 1. universe (intro) 2. celestial sphere (18.1) 3. ecliptic 4. right ascension 5. declination 6. parsec 7. photosphere (18.2) 8. apparent magnitude (18.3) 9. absolute magnitude 10. H-R diagram 11. main sequence 12. red giants 13. white dwarfs 14. nebulae (18.4) 15. planetary nebula 16. nova (18.5) 17. supernova 18. neutron star 19. black hole 20. galaxy (18.6) 21. globular clusters 22. dark matter 23. cosmology (18.7) 24. Hubble’s law 25. dark energy 26. Big Bang 27. cosmic microwave background For each of the following items, fill in the number of the appropriate Key Term from the preceding list. v. _____ The relationship between the distance of a galaxy and its recessional velocity

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An Introduction to Physical Science

14th Edition
James Shipman + 3 others
Publisher: Cengage Learning
ISBN: 9781305079137
BuyFind

An Introduction to Physical Science

14th Edition
James Shipman + 3 others
Publisher: Cengage Learning
ISBN: 9781305079137

Solutions

Chapter 18, Problem VM
Textbook Problem

KEY TERMS

  1. 1. universe (intro)
  2. 2. celestial sphere (18.1)
  3. 3. ecliptic
  4. 4. right ascension
  5. 5. declination
  6. 6. parsec
  7. 7. photosphere (18.2)
  8. 8. apparent magnitude (18.3)
  9. 9. absolute magnitude
  10. 10. H-R diagram
  1. 11. main sequence
  2. 12. red giants
  3. 13. white dwarfs
  4. 14. nebulae (18.4)
  5. 15. planetary nebula
  6. 16. nova (18.5)
  7. 17. supernova
  8. 18. neutron star
  9. 19. black hole
  10. 20. galaxy (18.6)
  1. 21. globular clusters
  2. 22. dark matter
  3. 23. cosmology (18.7)
  4. 24. Hubble’s law
  5. 25. dark energy
  6. 26. Big Bang
  7. 27. cosmic microwave background

For each of the following items, fill in the number of the appropriate Key Term from the preceding list.

v. _____ The relationship between the distance of a galaxy and its recessional velocity

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Chapter 18 Solutions

An Introduction to Physical Science
Ch. 18.5 - How does a black hole form?Ch. 18.6 - How big is the Milky Way galaxy?Ch. 18.6 - Is the universe expanding?Ch. 18.7 - Is the universe expanding?Ch. 18.7 - What does the universe look like on a large scale?Ch. 18.7 - Calculate the age of the universe if the constant...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - KEY TERMS 1. universe (intro) 2. celestial sphere...Ch. 18 - What is the point on the celestial sphere...Ch. 18 - What is the name of the path on the sky that the...Ch. 18 - The angular measure in degrees north or south of...Ch. 18 - Which of the following is part of the Suns outer...Ch. 18 - Why are sunspots darker than the regions of the...Ch. 18 - Where in the Sun does fusion of hydrogen occur?...Ch. 18 - The part of the Suns structure that we see in...Ch. 18 - What force keeps the all stars from flying apart?...Ch. 18 - Which property classifies the star based on its...Ch. 18 - A relatively hot star is which of the following...Ch. 18 - At the end of the Suns life, what kind of object...Ch. 18 - The famous Orion Nebula is which of the following?...Ch. 18 - A white dwarf has about the same diameter as which...Ch. 18 - What is the fundamental quantity of a star that...Ch. 18 - What event is believed to create elements heavier...Ch. 18 - Black holes appear black for what basic reason?...Ch. 18 - The Milky Way is classified as what kind of...Ch. 18 - What is dark matter? (18.6) (a) electrons,...Ch. 18 - What key observation led Hubble to conclude that...Ch. 18 - What is the cosmic background radiation? (18.7)...Ch. 18 - The apparent change of the position of a star due...Ch. 18 - The extension of the Earths equator onto the...Ch. 18 - The longitude of a place on the Earths surface is...Ch. 18 - The latitude of a place on the Earths surface is...Ch. 18 - The ___ cycle is 11 years long. (18.2)Ch. 18 - The Suns energy comes from the fusion of hydrogen...Ch. 18 - ___ are sudden, bright, explosive events...Ch. 18 - The celestial sphere is divided into 88 ___....Ch. 18 - Spectral type A stars are ___ in color. (18.3)Ch. 18 - Analysis of the ___ of a star reveals the...Ch. 18 - The magnitude scale is really a scale of ___....Ch. 18 - The diagonal group of stars on an H-R diagram is...Ch. 18 - ___ are cooler, larger, evolved stars. (18.4)Ch. 18 - When a star runs out of nuclear fuel, the core...Ch. 18 - Stars are born in giant clouds of gas and dust,...Ch. 18 - A new star is called a(n) ___. (18.5)Ch. 18 - A pulsar is a rapidly rotating ___. (18.5)Ch. 18 - The most catastrophic of stellar explosions is...Ch. 18 - Astronomers think that a(n) ___ black hole lies at...Ch. 18 - Astronomers think that the universe is ___ billion...Ch. 18 - Define the term cosmology.Ch. 18 - Name the three celestial coordinates.Ch. 18 - At what angle is the ecliptic tilted with respect...Ch. 18 - What is the vernal equinox, and what does it have...Ch. 18 - Which is the larger unit of distance, the...Ch. 18 - What angles and distances are needed to determine...Ch. 18 - What is the approximate temperature of the Sun at...Ch. 18 - Estimate the year of the next solar maximum.Ch. 18 - When is the Suns corona visible?Ch. 18 - Approximately how many times larger than the Earth...Ch. 18 - Describe the various layers of the Sun beginning...Ch. 18 - Give the net reaction of the protonproton chain.Ch. 18 - What two forces are balanced inside a star to keep...Ch. 18 - What is the difference between the apparent...Ch. 18 - Describe the motions of the Moon, stars, and...Ch. 18 - How far away is the star closest to the Sun? What...Ch. 18 - Give seven spectral classes of stars, in order...Ch. 18 - Name one star from each of the four groups of...Ch. 18 - What is the difference between an emission nebula...Ch. 18 - How big will the Sun become as a red giant star?Ch. 18 - Define the term nucleosynthesis.Ch. 18 - Describe how the mass of a star plays a role in...Ch. 18 - What is a brown dwarf? Have any brown dwarfs been...Ch. 18 - State the order in which the following possible...Ch. 18 - What is the difference between a nova and a...Ch. 18 - Compare the sizes of a white dwarf and a neutron...Ch. 18 - Compare a pulsar with a lighthouse.Ch. 18 - Sketch a nonrotating black hole, showing the...Ch. 18 - How do astronomers detect a black hole?Ch. 18 - Name the three major classifications of galaxies.Ch. 18 - What is a quasar?Ch. 18 - What are two types of spiral galaxy, and how do...Ch. 18 - What is the significance of (a) dark matter and...Ch. 18 - State the structure and dimensions of the Milky...Ch. 18 - What are globular clusters, where are they found,...Ch. 18 - What two basic groups of objects are thought to...Ch. 18 - What is the galaxy classification of the Milky Way...Ch. 18 - What is Hubbles law, and what conclusion about the...Ch. 18 - Briefly, how do galaxies seem to be distributed in...Ch. 18 - State three experimental findings that support the...Ch. 18 - Name the most recent modification of the Big Bang...Ch. 18 - What is the composition of the universe?Ch. 18 - Visualize the connections and give answers in the...Ch. 18 - Why do you think it took so long for astronomers...Ch. 18 - What might happen if the bright star Sirius...Ch. 18 - Consider three main sequence stars: Star A is...Ch. 18 - If you went outside on a clear night to locate...Ch. 18 - How are the light from emission nebulae and the...Ch. 18 - Do you need to worry that the Sun will swell to a...Ch. 18 - What major factor determines the future of the...Ch. 18 - Find the distance in parsecs to the star Altair,...Ch. 18 - The bright star Sirius has a parallax angle of...Ch. 18 - Calculate the number of seconds in a year (365...Ch. 18 - Calculate the number of miles in a light-year,...Ch. 18 - The red supergiant star in Orion is called...Ch. 18 - The famous Pleiades star cluster is about 130...Ch. 18 - How many times brighter is a Cepheid variable of...Ch. 18 - How many times dimmer is a star with magnitude +1...Ch. 18 - A galaxy cluster in Ursa Major has a recessional...Ch. 18 - The Hydra supercluster has a distance of about 800...Ch. 18 - Suppose that the Hubble constant had a value of H...Ch. 18 - If Hubbles constant had a value of 75 km/s/Mpc,...

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