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9ol.ASTRONOMY 1
STUDY GUIDE EXAM
Identify Terms - Matching (20 @ 1 point each = 20 pts.)
Multiple Choice (25 @ 2 points each = 50 pts.)
Essays (choose 2 of 3 @ 15 points each = 30 pts.)
CH 7
Jovian Planets
Liquid metallic hydrogen
Magnetosphere
Roche limit
Dwarf planet
Tidal heating
Galilean Moons
Saturn’s rings
Saturn’s moon, Titan
Pioneer 10
Voyager I & II
Galileo spacecraft
Cassini spacecraft
CH 8
Asteroid
Comet
Kuiper belt
Half-life
Solar nebula theory
Protoplanet
Gravitational collapse
Condensation
Extrasolar planet
Hot Jupiter
Accretion
Ice line
Outgassing
CH 9
Stellar parallax
Parsec
Intrinsic brightness
Absolute visual magnitude
Luminosity
Spectral class
H-R diagram
Main sequence
Light curve
Binary star
Mass –luminosity relation
White dwarf
Spectroscopic binary
Multiple Choice (There will be 25 on the exam)
CHAPTER 7
1. What are properties of Jovian planets.
2. Know some things about Jupiter’s magnetic fields. (slide 7 lecture)
3. What is one important source of particles to circulate around Jupiter's magnetic field?
4. What jovian planet has the highest equatorial wind speeds.?
5. Who first discovered the four large moons of Jupiter ? (Slide 24)
6. What is the cause of its many volcanic/geyser-like eruptions on the moon Io?
7. Which of Jupiter’s Moons is considered likely to have a deep, subsurface ocean of liquid water?
8. What do the rings of the outer planets consist of?
9. Describe Saturn's rings: What are they made of, are there more than one, how big are
the particles that make up the rings? (slide 27 – 29)
10. Describe the interior of Jupiter and draw a labeled sketch of a cross section through Jupiter.
(see slide 5 Lecture)
11. Discuss the Roche limit, its cause, its effects, and how it depends on the mass of the planet.
12. Describe Saturn’s moon Titan, (appearance, atmosphere and surface features) as observed by the
Cassini orbiter and the Huygens probe (See slide 24 Lecture)
13. What is the most abundant element in the giant (jovian) planets?
14. What is the largest planet in the solar system ?
15. Two spacecraft have given us much of what we know about the Jovian planets and their
satellites. What were these spacecraft called?
16. Which planet that orbits "on its side" (i.e. has its rotation axis perpendicular to the plane of its
orbit) ?
17. Which planet was discovered by means of mathematical calculations of how it affected the
motion of a neighboring planet?
CH 8
18. Be able to answer questions as to the Scale of solar system
19. Orbits of planets?
20. What observation made of other stars seems to suggest the solar nebula hypothesis is correct?
21. Name and describe several members of the Kuiper Belt, including Pluto.
22. What is the main difference between asteroids and comets? (what is the difference in their
composition?)
23. What is the giant spinning system of gas and dust that solar system formed from called ?
24. What are planetesimals?
25. What is a protoplanet?
26. Why are reasons professional astronomers today are interested in cornets?
27. In studying the surfaces of solid bodies in the solar system, what do the number of craters (per unit
area) tell us?
28. .Radioactive dating techniques have revealed that our Earth and Moon are approximately how old?
29. According to our theory of solar system formation, what three major changes occurred in the solar
nebula as it shrank in size?
30. According to our present theory of solar system formation, why were solid planetesimals able to grow
larger in the outer solar system than in the inner solar system?
31. What is an "extrasolar planet?"
32. When you see the bright flash of a meteor, what are you actually seeing?
CH 9
33. Would parallax be easier to measure if the Earth’s orbit were larger? Why or why not?
34. What is absolute visual magnitude?
35. What does a star’s luminosity depend on?
36. What can you deduce from the spectral lines in the solar spectrum?
37. How can the temperature of a star be determined?
38. Be familiar with an H-R Diagram, i.e. where are stars with the smallest radius found? Where are
the hottest stars found? The coolest? Where on the diagram are 90% of all stars found? Where is our
Sun on the diagram?
39.In a binary system, would the more massive star be closer to the center of mass? Farther? at the
center of mass?
40.What information can be gotten from a binary system?
41. If two stars are emitting the same amount of light, If one star is farther than the other, how will the
appearance of the two stars compare ? (.Two stars have the same luminosity, but star B is three times
farther away from us than star A. Compared to star A, star B will look ………)
42. What is a white dwarf? a supergiant star? A main sequence star? What type is our Sun?
Be able to answer question relating to these figures:
Which star is more massive A or
B