TAKEN FROM HORIZONS 7TH EDITION CHAPTER 18 TUTORIAL QUIZ 1. Which of the following are known to have ring systems? a. Saturn only. b. Jupiter, Uranus, and Saturn. c. Saturn, Jupiter, Uranus, and Neptune. d. Saturn, Jupiter, and Neptune. 2. What theory was advanced to explain the origin of Saturn's rings? a. Another planet wandered too close, invaded the Roche limit, and broke up. b. Saturn captured material from the Asteroid Belt. c. Comets collided with and broke up small satellites that formed with the planet. d. They are basically the same today as they were when they first formed with Saturn. 3. What is important about discovering a thick atmosphere on a satellite in the solar system? a. An atmosphere allows for the existence of liquid on the surface. b. Satellites do not have gravity, so the atmosphere must be continuously "expelled" from the interior of the satellite. c. Space travelers will use it as an oxygen supply during trips to the surface of the planet. d. The oxygen in the atmosphere very likely originated from life forms on the surface. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (1 of 8)8/12/2005 9:05:28 AM
4. Which of the following statements about Jupiter is FALSE? a. The difference between the dark belts and light zones is that the cooler belts are sinking while the warmer zones are rising. b. The Great Red Spot is a vast cyclonic storm. c. Unlike terrestrial planets, Jupiter consists mostly of the gases ammonia, water vapor, and ammonia hydrosulfide. d. The forward scattering of light from the ring material suggests the presence of small particles, smaller than dust particles. 5. We associate the Roche limit with the a. the distances of planets from the Sun. b. ring systems of the planets. c. tilt of axis of rotation of a planet. d. number of satellites a planet has. 6. The surface of which of these reveals grooved regions with occasional fault cutting across the grooves, suggesting the upwelling of molten material through a frozen surface early in the history of the solar system? a. Titan. b. Venus. c. Ganymede. d. Europa. 7. Jupiter reveals all of the following except a. a solid surface beneath the clouds. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (2 of 8)8/12/2005 9:05:28 AM
b. radiation belts of solar wind particles. c. a powerful magnetic field. d. auroras and lightning. 8. Which of the following statements is FALSE? a. Pluto and its satellite Charon probably did not form together. b. The surface of the satellite Triton is thought to be young. c. Since Pluto's orbit is highly inclined, it is most likely an escaped satellite of Neptune. d. The retrograde orbit of Triton suggests that it was gravitationally captured by Neptune. 9. Which of the following does NOT reveal evidence of the presence of volcanoes or geysers? a. Mars. b. Titan. c. Triton. d. Io. 10. Which of the following statements about Pluto is FALSE? a. Like Charon and Triton, it may be an "ice dwarf" that formed beyond Neptune's orbit. b. It is suspected to consist of an ice-rock mixture. c. Its orbit is the most elliptical of any planet in the solar system. d. It is the most recently discovered planet in the Galaxy. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (3 of 8)8/12/2005 9:05:28 AM
11. Which of the following statements about Neptune is FALSE? a. Its Great Dark Spot is about the size of Earth. b. Some portions of the rings are denser than others, creating ring arcs. c. Its atmospheric activity is driven by the most rapid rotation of any planet in the solar system. d. It appears strikingly bluish in photographs due to the presence of methane. 12. Which of these reveals evidence of recent activity on its surface? a. Mercury. b. Enceladus. c. Ganymede. d. Pluto. 13. The surface of appears as a crisscross pattern of dark streaks which are believed to be cracks in a satellite-wide ice sheet covering a liquid ocean beneath: a. Europa. b. Callisto. c. Triton. d. Io. 14. Which is NOT a true statement about the planet Uranus? a. Its equator lies almost at right angles to its orbital plane around the Sun. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (4 of 8)8/12/2005 9:05:28 AM
b. Most of its satellites were discovered by Voyager 2 as it encountered Uranus. c. It has a thin ring system. d. Its density, less than that of water, would allow it to float in a large container of water. 15. What is the best explanation for the presence of active volcanoes on the surface of Jupiter's Io? a. Friction between blocks of ice causes the interior to melt, resulting in escaping gases. b. Radioactive material heats up the satellite's interior, and molten lava escapes to the surface. c. Jupiter's gravity distorts it as it alternately moves closer to and farther away from Jupiter. d. As material sinks toward the core, the release of energy melts material which then escapes as gases and molten rock. 16. The thin, irregular nature of the F-ring of Saturn is believed to be the result of a. electrostatic charges. b. collisions with comets. c. gravitational influences of Jupiter. d. "shepherding" satellites. 17. Science is to technology as a. understanding is to the application of scientific knowledge to solve a specific problem. b. working with the mind is to working with the hands. c. knowledge of outer space is to knowledge of Earth's surface and how to put it to use for human beings. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (5 of 8)8/12/2005 9:05:28 AM
d. working for a government agency is to working for a private corporation. 18. If a planet such as Jupiter emits more energy than it receives from the Sun, we can suppose that a. it is left-over from the formation of the planet. b. it is slowly evaporating, and will eventually become a solid planet. c. some of the gases in the atmosphere are combining together (burning) to generate that extra energy. d. the proton-proton chain is proceeding at the core of the planet. 19. Which of the following do Earth and Jupiter NOT have in common? a. A solid core. b. Auroras. c. Clouds of water in the atmosphere. d. A magnetosphere. 20. Even a small telescope allows observers to see the beautiful dark and light bands circling Jupiter. These are a. the Van Allen radiation belts. b. related to Earth's high- and low-pressure areas. c. none of these choices. Astronomers do not know why they are present. d. quite stable, appearing the same year after year. 21. The sizes of the particles comprising Jupiter's rings are determined by file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (6 of 8)8/12/2005 9:05:28 AM
a. measuring the Roche limit. b. comparing the apparent visual and absolute magnitudes. c. the Doppler effect. d. viewing the rings illuminated from behind, called Forward Scattering. 22. Evidence that rings are not permanent features of the planets that have them: a. photographs of Saturn taken during the last century do not reveal rings. b. the Gossamer rings of Jupiter are most dense at the orbits of two small moons. c. all of the ring systems in the solar system are within the Roche limit. d. between the visits of the two Pioneer satellites to Jupiter, an additional ring had formed. 23. Although the surface features of reveal an active past, it is believed to be presently inactive. a. Io b. Europa c. Triton d. Ganymede 24. Portions of the surface of resemble icebergs floating in pack-ice on Earth. a. Pluto b. Callisto c. Titan d. Europa file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (7 of 8)8/12/2005 9:05:28 AM
25. Which of the following statements regarding moons in the solar system is TRUE? a. All moons appear to have formed about the same time as their parent planet. b. Water in the liquid state does not exist in or on any of the moons. c. None of the moons is large enough to possess an atmosphere. d. Nearly all the moons rotate at the same rate they revolve around their parent planet. file:///f /Astronomy/OuterPlanetsPracticeQuiz.txt (8 of 8)8/12/2005 9:05:28 AM