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Descriptive Physics Unit 3 Homework Pick 8 total questions (at least 1 from each chapter) to answer. Points work the same way it has in previous chapters. Must reference work. Chapter 26 What is the...

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Descriptive Physics Unit 3 Homework

Pick 8 total questions (at least 1 from each chapter) to answer. Points work the same way it has in previous chapters. Must reference work.

Chapter 26

  1. What is the Nebular theory?
  2. What causes a system of gas and dust to coalesce?
  3. What causes the disk shape of several things in the universe (our solar system, black hole accretion disks, potentially large scale galaxies, etc)?
  4. What is the main reason for size differences amongst the planets and our star?
  5. What is one reason for the composition differences between the inner and outer planets?
  6. Could a planet ever become a star? How?
  7. Why are the planets still spinning?
  8. What is our home star called?
  9. What is the Sun mostly composed of?
  10. What are the four inner planets?
  11. What is one reason mercury does not have an atmosphere?
  12. Why are there such a wide range of temperatures on Mercury?
  13. What is one reason Venus to be so hot (aside from its proximity to the Sun)?
  14. Which planet is it very similar to size to?
  15. What do we call the zone in which Earth lies?
  16. What are some reasons Earth has a fairly narrow set of temperatures?
  17. What is Mars’ atmosphere mostly composed of?
  18. What are the four outer planets?
  19. Is Jupiter more liquid or gaseous?
  20. What is the great red spot on Jupiter?
  21. What causes a fairly narrow range of temperatures on Jupiter?
  22. Which moon on Jupiter may contain water?
  23. Which is the least dense planet?
  24. What are the rings of Saturn made from?
  25. What caused Uranus’ tilt?
  26. What causes Uranus’ unique color?
  27. Neptune as well is blue. Why is that?
  28. Where does Pluto spend most of its time?
  29. Why is it no longer considered a planet?
  30. What is one theory about how Earth’s moon (and Earth’s tilt) was formed?
  31. What causes the moon to shine brightly at night?
  32. Why are there moon phases?
  33. What causes eclipses?
  34. What is the difference between a solar eclipse and a lunar eclipse?
  35. Why are there other objects in our solar system besides planets, moons and the Sun?
  36. What is the difference between an asteroid and a comet?
  37. What causes a comet’s tail exist?
  38. What is the difference between a meteoroid, a meteor, and a meteorite?

Chapter 27

  1. How did ancient people tell different groups of stars apart?
  2. What diagram helps us classify stars?
  3. What are the two main measurements that helps us place stars on that diagrams?
  4. What do we compare other stars’ brightness to?
  5. What does a star’s color indicate?
  6. Our star is where on the HR diagram?
  7. What determines whether an object will become a star or not?
  8. Is our star a low or high mass star?
  9. What determines the age of a star and just where it is in its life cycle?
  10. What is the ultimate fate of a low mass star that is only currently hypothesized?
  11. What are the two possible fates for high mass stars?
  12. Supernovae and Planetary Nebula debris are used for what?
  13. What is a galaxy?
  14. What are the three types of galaxies?
  15. What is a starburst galaxy?
  16. What is an active galactic nucleus?
  17. What is a local group?
  18. What is a local supercluster?
  19. Roughly how large in diameter is our observable universe?

Chapter 28

  1. Until what decade did people believe that the Milky Way Galaxy made up the entire universe?
  2. What did Edwin Hubble discover that disproved the belief that the Milky Way Galaxy made up the entire universe?
  3. What law did Hubble use to determine distance to celestial objects?
  4. What does blue shifting mean?
  5. What does red shifting mean?
  6. What does Hubble’s law imply?
  7. What evidence is there for the Big Bang?
  8. What is the Cosmic Microwave Background?
  9. What % of the ordinary matter in the universe is hydrogen? Helium? Heavy elements?
  10. What is the Principle of Equivalence?
  11. What does gravity do to space itself that makes it appear that planets move in orbits, light “bends” around objects, etc?
  12. What is dark matter and how do we know it exists?
  13. What do scientists think is responsible for the acceleration of the universe?
  14. What are two possible scenarios for the fate of the universe?
Homework: Chapters 12-14" aria-describedby="msf0-previous-desc" >PreviousNext Module:
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Answered Same DayDec 07, 2021UNIT 3

Solution

Rajeswari answered on Dec 07 2021
54 Votes
Physics assignment
Chapter 26
1)
28) Where does Pluto spend most of the time?
    Pluto timings
    
    years
    Aries
    31
    Taurus
    31
    Gemini
    32
    Cance
    25
    Leo
    21
    Virgo
    16
    Li
a
    13
    Scorpio
    12
    Sagitturs
    16
    Capricorn
    16
    Acqiarius
    20
Pluto spends maximum time in Gemini as shown above while others range from 16 to 31, in Gemini 32 years the maximum
Ref: https:
trans4mind.com/personal_development/astrology/LearningAstrology/signsPluto.htm#o1%20Aries
2)
What are the rings of Saturn made from?
Saturn rings are made of
i) Billions of dust and rock
ii) Pieces of ice
These sizes vary from small particles to big houses. The gravity of Jupiter is so great that even...
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