Download 1 UNIT 3 EARTH HISTORY - POSSIBLE TEST QUESTIONS OUR

UNIT 3 EARTH HISTORY - POSSIBLE TEST QUESTIONS
OUR UNIVERSE
Revised 12/14/10
The Big Bang
1. What is the Big Bang Theory?
2. What is the approximate age of the Universe?
3. Where is the center of our universe?
Evidence for the Big Bang
4. What do we generally mean by the term “cosmic”?
5. Which is the most abundant element in the Universe (cosmic abundances of the original three)?
6. What does a cosmologic red shift imply (objects moving toward us or away from us?
7. Describe the concept of the expansion of space, and compare the velocities of expansion with
distances of galaxies further away from us.
8. What is CMB (Cosmic Microwave Background Radiation)?
9. About how much TV static is caused by the CMB?
Expanding Space
10. Make a comparison about the expansion of space (raisin bread).
11. What does the latest evidence imply about the fate of our Universe?
What Makes Up the Known Universe
12. About how much “dark matter” and “dark energy” make up our known universe?
13. What is the apparent affect of dark energy?
Light Speed
14. How fast does light travel in miles per second?
15. What can travel faster than light?
Galaxies
16. Who first proved that galaxies are located outside our own galaxy?
17. Give a simple definition of a galaxy
Galaxy Types
18. What three galactic types make up the Hubble classification of galaxies?
19. Where is the relative location of the older and younger stars in typical spiral galaxies?
20. Name and give the “type” for the largest known galaxy and estimated number of stars.
21. Are collisions of galaxies rare? How do we know?
Grouping of Galaxies
22. Define a galaxy cluster.
23. What is an “Einstein cross” and what would cause this?
24. What is an “Einstein ring” and what would cause this?
25. What are galaxy superclusters?
26. What makes up our largest structure in the known universe?
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Nebula
27. Give a simple definition of a nebula?
28. What is important about simple amino acids being found in nebula or molecular clouds?
Milky Way Galaxy
29. What is the name of our home galaxy?
30. How long does it take for our solar system to make one orbit about our galaxy?
31. What is the probable classification-type of galaxy for our home galaxy?
Components Of A Typical Barred Spiral Galaxy (like the Milky Way)
32. How far away is our sun located from the center of our galaxy?
Globular Clusters
33. Give a simple definition of globular clusters?
Magellanic Clouds
34. What are the Magellanic Clouds?
35. Where must we go to see the Magellanic Clouds? (From where are they visible?)
Andromeda Galaxy
36. What is Andromeda?
37. Describe the relative movement of this galaxy and its possible consequences to our galaxy.
Raw Material for a Solar System
38. Which two atoms (elements) comprises most of our Sun.
Solar Systems - General
39. What are planetesimals?
Shape and Motion of Solar Systems
40. View from the “top”, which direction do our planets orbit our Sun?
Our Sun
41. What is the approximate diameter of our Sun in miles?
42. How long does it take light from our Sun to arrive to Earth?
Classification of Stars
43. Based on temperature and brightness, our Sun is _________.
44. What are the two types of super-giant stars?
Fate of Stars
45. Over time, what is the fate of our sun?
46. What might be the fate of our sun if it had more than 4 times its present mass?
Nearest Star Other Than the Sun
47. What is its name?
Other Planets Not in Our Solar System (Exoplanets)
48. About how many planets (exoplanets) have been discovered beyond our solar system?
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49. Which method has been used to locate most exoplanets?
Our Solar System of Planets
50. Name all the planets, in order from the Sun.
The Outer Giant Gas Planets
51. Compare the mass of Jupiter to the other planets.
Dwarf Planets and Plutoids
52. What criteria of heavenly bodies are being considered for “dwarf planet” and “Plutoid” status?
Moons
53. What is the composition of most moons (ice, rock,???)
54. Which moon has river of methane?
Asteroids
55. Where are most asteroids located?
56. What is the mass of all known asteroids?
57. Which asteroid has the US landed a probe?
58. To date, how many asteroids are of concern of hitting the Earth?
Meteorites
59. What three types of meteorites are there?
60. How many people have been killed by meteorites?
61. How many larger meteor craters are known in Texas?
Comets
62. What is a comet?
63. What is the Oort Cloud and where is it located?
64. What is the Kuiper Belt and where is it located?
65. What causes meteor showers or shooting stars?
Our Moon
66. How do we explain the origin of our moon today?
67. What is the moon’s size compared to Earth?
68. When does the far side of the moon face Earth?
Weekly Quiz # 5
Page 17 Earth – Its Place in Our Solar System
A) Our book suggests that early Earth was: __________
Page 17 Earth – Its Place in Our Solar System
B) According to our book, what increased the temperature of our early Earth? ________
Page 17 Earth – Its Place in Our Solar System
C) According to our book, what was the most significant event in Earth’s history? ________
Page 15 The Terrestrial and Jovian Planets
D) What is unique about the planet Uranus? ______
Page 18 Figure 1.10
E) What layer surrounds the lower mantle? ________
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