Download Lecture 21: The Earth, The Moon

Dr. W. Pezzaglia
Las Positas College
Astronomy 10, Spring 2013
Lec #21: Earth, Moon
Page 18
2013Apr09
Lecture 21: The Earth, The Moon
Schedules:

Mar 28, Thursday, Lecture #20 (last time)
o Lecture: The Earth (chapter 9), part A Interior of the earth

Apr 09, Tuesday, Lecture #21 (today)
o Lecture: The Earth (chapter 9), part B surface, part C. Atmosphere, Part D
Magnetosphere
o Lecture: The Moon (chapter 10)

Apr 11, Thursday, Lecture #22 (next time)
o Lecture: The Moon (finish)
o Lecture: Mercury (chap 11)

Apr 16, Tuesday, Lecture #23
o Lecture: Venus (chap 11), start but will not finish
o Quiz #4 on Solar System (chap 7-8), Earth (chap 9) Moon (chap 10)

Apr 17, Wednesday, 7 pm Xtra Credit Talk, Foothill College
o Brown Dwarfs and Free-floating Planets:, Prof G. Basri, UCB
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Sample Quiz Questions on Solar System and earth (Quiz 4)
1. Which planet does NOT have something unusual about it revolution or rotation?
a. Mercury
b. venus
c. Uranus
d. Pluto
e. none of these
2.. Which theory is most accepted for the formation of the solar system?
a. catastrophe b. condensation/nebular c. tidal
d. fission/daughter
e. none of these
3. What is the second largest planet in the solar system?
4. The biggest moon in the solar system?
5. Are any moons bigger than the planet Mercury?
6. Name the planets in order (starting from the sun)
7. Which planets are the terrestrial ones? What are the other ones called?
8. How does one measure the mass of the planets? Is the method different for Jupiter than for Venus?
9. Which planets are the inferior ones?
10. Which planet is between Jupiter and the Earth?
___________
11. Which theory is most accepted for the formation of the solar system? What were they other theories (and
why do we not believe them?)
12. The approximate age of the earth?
13. Did the earth come with an ocean, or was this feature added later?
14. Describe the major features of the earth's atmosphere, and how/why we divide it up into layers, and
what is special about each.
15. Describe the process of geological (chemical) differentiation, and how we might know it has
happened on a planet. What does the interior of the earth look like?
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Sample Exam Questions on Moon
1. The marias on the moon are:
(a) ancient seas that have evaporated, (b) lava flow from impact on the surface, (c) lava flow from a
molten interior. (d) areas of deep dust
2. The theory most accepted for the formation of our moon is? [there are 3 other theories, what is
WRONG with each?]
3. The approximate age of the earth? Of the moon? Of the marias on the moon?
4. Discuss the basic stages of the evolution of the moon, and what is the evidence that these occurred?
(i.e. how did we figure this out?)
5. Approximate age of the earth? Moon?
______________
6. Compare and contrast the earth and moon, in what ways was their evolution similar, and at what point
did they begin to differ, and why?
7. Describe the major features of the earth's atmosphere, and how/why we divide it up into layers, and
what is special about each. How does the atmosphere of Venus differ or similar?
8. Describe the process of geological (chemical) differentiation, and how we might know it has happened
on a planet. What does the interior of the earth look like?
9. What are the various theories for the formation of the moon? which is favored and why?
Dr. W. Pezzaglia
Las Positas College
Astronomy 10, Spring 2013
Lec #21: Earth, Moon
Page 19
2013Apr09
Quiz 3: performance (of March 26, 2013).
Very approximate grades: (if we use same curve as for midterm)
 50% border between B+ and A 35% border between C+ and B 20% border between D and C-
LPC Astro 10 Quiz 3 (87 total, avg 35% +/-13%)
4
3
2
1
Percent Score (rounded off)
"65-66"
"63-64"
"61-62"
"59-60"
"57-58"
"55-56"
"53-54"
"51-52"
"49-50"
"47-48"
"45-46"
"43-44"
"41-42"
"39-40"
"37-38"
"35-36"
"33-34"
"31-32"
"29-30"
"27-28"
"25-26"
"23-24"
"21-22"
"19-20"
"17-18"
"15-16"
0
"13-14"
Number of students
5