Download File

DeAnza College Astro 04 Test 3 Winter Quarter 2006
True/False
Indicate whether the sentence or statement is true or false. Mark “A” for True or “B” for False on your Scantron.
Do not mark this test copy.
____
1. The Moon has no measurable atmosphere.
____
2. The manned Apollo Missions to the Moon returned over 800 pounds of lunar rocks to Earth.
____
3. Mercury is the smallest planet in the Solar System.
____
4. The Mariner 10 spacecraft is the only spacecraft to have flown past and photographed the planet Mercury.
____
____
5. Because Mercury is the closest planet to the Sun there is little difference between the temperatures on the day
and night side of the planet.
6. Scarps are believed to have formed on the moon when its interior cooled and shrank.
____
7. Venus is very hot because its atmosphere is rich in carbon dioxide.
____
8. Radar maps of Venus show impact craters.
____
9. Venus is about the same size as Earth.
____ 10. The most abundant gas in the atmospheres of Venus and Mars is nitrogen.
______11. Flow channels on Venus suggest it was once rich in water.
____ 12. Venus is very hot because its atmosphere is rich in carbon dioxide.
____ 13. Radar maps of Venus show impact craters.
______14. Jupiter radiates less energy than it absorbs from the sun.
______15. Saturn is the only planet in the Solar System with rings.
______16. The cloud belts of Jupiter are more prominent than those of the other gas giant planets.
______17. Mariner 10 was the only spacecraft to fly past Jupiter, Saturn, Uranus and Neptune.
______18. The Great Dark Spot is a cloud feature in the atmosphere of the planet Uranus.
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question. Mark your choice on Scantron.
Do not mark this test copy.
____ 19. How does the Moon compare with Earth approximately in size and mass?.
a. same size and mass
d. 1/4 the size and 1/80 the mass
b. half the size and half the mass
e. 1/80 the size and 1/80 the mass
c. 1/4 the size and 1/4 the mass
____ 20. The lunar maria are
a. the lava plains of the lunar lowlands.
b. the smooth plateaus of the lunar highlands
c. less than one billion years old.
d. moving plates of lunar crust.
e. older than the lunar highlands.
____ 21. The moon is no longer geologically active because
a. it is rotating too slowly.
1
b.
c.
d.
e.
its radioactive elements were never abundant.
it is too small.
its crust is too thin.
it does not have water on its surface.
____ 22. As the moon revolves around Earth,
a. it keeps one side always towards the sun.
b. it rotates on its axis about once every earth day.
c. it keeps one side always toward Earth.
d. the moon makes two rotations on its axis for every revolution.
e. the moon makes one rotation on its axis for every two revolutions.
____ 23. Which hypothesis concerning the formation of the moon makes predictions that best fit the observed lunar
data?
a. The giant impact theory.
b. The fission theory
c. The capture theory
d. The sister or co-theory
e. The regolith theory.
____ 24. The moon's highlands
a. contain a large number of valleys.
b. are older than the maria.
c. contain relatively few craters compared to the mare. .
d. were formed as the result of a large meteorite impact on the opposite side of the moon.
e. contain large amounts of sedimentary rock.
____ 25. That the moon has no magnetic field implies that
a. the moon is spinning too fast to produce a magnetic field.
b. the interior of the moon is too hot to produce a magnetic field.
c. the crust of the moon is so thick that the magnetic field can not get out of the interior
d. the moon's core contains little if any molten iron and it spins tooo slowly.
e. the moon is moving further from Earth.
____ 26. The fission theory of the moon's origin has been criticized because
a. the moon is more spherical than Earth.
b. the moon's composition is different from Earth's.
c. the tidal forces are making the moon approach Earth.
d. it requires too many coincidences for it to occur.
e. the moon has a large iron-nickel core.
____ 27. Caloris Basin on Mercury is believed to be
a. a dry sea floor.
b. an impact basin filled with lava flows.
c. a network of lobate scarps.
d. jumbled terrain.
e. a sinuous rille.
____ 28. The theory that Mercury shrank slightly (parts of its surface crust collapsed) when it was young has been
proposed to explain Mercury’s
a. extended lava plains.
b. large craters.
c. magnetic field.
d. scarps.
____ 29. The surface of Mercury is difficult to map from Earth because
a. it is hidden beneath thick clouds.
b. it is never closer than 8 AU to Earth.
c. it is difficult to observe with a telescope since it is always near the sun.
2
____ 30.
____ 31.
____ 32.
____ 33.
____ 34.
d. all of the above
e. none of the above.
That Mercury has a large iron core is evidenced by
a. the scarps on its surface.
b. the high density of Mercury.
c. the lava flows near Caloris Basin.
d. all of the above
e. none of the above
The surface temperature of Mercury is
a. about equal to that of Earth's deserts.
b. about equal to that on the bright side of the moon.
c. nearly equal to the surface temperature of the sun.
d. about the same on the day and night sides of the planet.
e. none of the above
The surface of Venus has been studied
a. using radar maps made from Earth.
b. using radar maps made from satellites orbiting Venus.
c. using spacecraft that have landed on the surface of Venus.
d. all of the above
e. only b and c.
Most terrestrial planets have portions of their surface that appear to be significantly older than other portions of
their surface. What evidence suggests that the surface of Venus is all of the same age?
a. Photos taken by probes that landed on Venus showed that all of the rocks were of the same
age.
b. The craters on Venus are randomly distributed in size and number across the surface.
c. The volcanoes on Venus are not found in isolated groups, but are scattered around the
planet.
d. a and b
e. all of the above
Measurements of the magnetic field of Venus reveal that the
a. planet has a large iron core.
b. interior of the planet is molten.
c. planet has no detectable magnetic field.
d. planet rotates backwards.
e. magnetic field is responsible for large auroral displays (northern lights) on Venus.
____ 35. Which of the solar system objects listed below is most similar to Earth in terms of mass and density?
a. Mercury
b. Moon
c. Venus
d. Mars
e. Deimos
____ 36. ________________ is a very long and deep canyon on Mars.
a. Valles Marineris
b. Ishtar Terra
c. Tharsis Bulge
d. A Scarp
e. Phobos
3
____ 37. The ice caps of Mars are made of __________ ice.
a. water
d. methane
b. carbon dioxide
e. there are no ice caps on Mars
c. water and carbon dioxide
______38. Jupiter does not have
a. a hot interior.
b. belts of clouds in its atmosphere.
c. crustal plates on its surface.
d. a dynamo effect.
e. any rings.
____ 39. Both Jupiter and Saturn
a. have liquid metallic hydrogen in their interiors.
b. have rings.
c. have many Moons.
d. have belt and zone circulation in their clouds.
e. all of the above
____ 40. In order of increasing distance from Jupiter, the Galilean Moons of Jupiter are
a. Io, Europa, Ganymede and Callisto
c. Europa, Ganymede, Io and Callisto
b. Callisto, Europa, Io and Ganymede
d. Ganymede, Io, Callisto and Europa
Matching
Identify the choice which best matches the statement. . Mark your choice on Scantron. Do not mark this test copy.
41. Earth’s “sister” planet
a) Mars
42. Has a very thin atmosphere compared with Earth
b) Venus
43. Has dry channels which appear to have been formed by water.
c) Both planets.
44. Primary atmospheric gas is carbon dioxide.
d) Neither planet.
45. Displays a huge impact basin called Caloris Basin.
46. Has water ice clouds in its atmosphere.
47. Rotates much more slowly than Earth.
48. Has no natural satellites or Moons.
49. Has craters on its surface.
50. Has Olympus Mons, the largest volcano in the Solar System.
4
5