Observing the Universe
Observing the Universe ASTR 1031
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This 7 page Class Notes was uploaded by Ezequiel Stokes on Wednesday September 23, 2015. The Class Notes belongs to ASTR 1031 at Middle Tennessee State University taught by Charles Higgins in Fall. Since its upload, it has received 20 views. For similar materials see /class/213150/astr-1031-middle-tennessee-state-university in Astronomy at Middle Tennessee State University.
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Date Created: 09/23/15
Practice Test 2 1 Slide 1 is an image that shows the surface of this planet a Venus b Earth c Saturn d Mars e Deimos 2 The planet shown in Slide 2 is probably a Venus b Mercury c Jupiter d Mars e Saturn 3 The closeup image in Slide 3 is probably this object a a tail of a comet b Satum s ring particles c a nucleus ofa comet d an asteroid e Pluto 4 The two rocky moons in Slide 4 probably belong to a Neptune b Venus c Earth d Jupiter e Mars 5 The Galilean satellite showing the largest number of impact craters is a Charon b Phobos c 10 d Callisto e Europa 6 Most meteorites come from a Mars b the Moon c comets d asteroids e an unknown source 7 The extinction of the dinosaurs 65 million years ago may have been caused by a a collision of the Earth with an asteroid or comet b variations in the intrinsic brightness of the Sun c a magnetic eld reversal d plate tectonics e volcanic activity 8 The nucleus of a comet is probably composed of a a ball of ice only b a ball ofice and gas c a rock and ice mixture d a ball of gas only e a large rock 9 Meteor showers are related to comets rather than asteroids a b False 10 Why is it hotter on Venus than on Mercury a Venus rotates more slowly b Venus has a large internal heat source c Venus has a greenhouse effect d Venus is still gravitationally contracting e Mercury has no atmosphere 11 The surface of this Galilean satellite is generally smooth with an intricate pattern of long cracks in the ice a Ganymede b Europa c 10 d Triton e Titan 12 Radar was used to discover that Venus s rotation is a slow and retrograde b rapid and direct c rapid and retrograde d slow and direct same as Earth e zero it does not rotate 13 One reason that the Earth probably evolved differently from Venus is that the water on Earth a creates a powerful magnetic field b creates clouds c removes carbon dioxide from the atmosphere d causes the planet to cool very rapidly e promotes the greenhouse effect 14 The atmosphere of Mars is mostly a Water b Carbon dioxide c Nitrogen d Carbon monoxide e Oxygen 15 The sca1ps on Mercury were caused by a continental drift b shrinking of the surface after cooling of the interior c expansion of the surface due to intense solar heating d volcanic activity e water erosion 16 The major factor which might have kept the material which formed the asteroids from not forming a planet was probably tidal effects from a The Sun b Jupiter c Saturn d Mars e Earth 17 The atmosphere on Mars is more dense than the Earth39s but less dense than Venus39s a False 18 The source of heat which produces Io39s volcanic activity is a solar radiation b the JupiterIo tidal force c radioactivity d the solar wind e Jupiter s rapid rotation 19 The surface of Mars has been found to have all but a active volcanos b craters c canyons d sand dunes e ice caps 20 Volcanism on Mercury if it existed could NOT have been recent because a the lava owed too far b the volcano domes are enormous in size c we would have seen the volcanos erupting d the lava has many craters e the lava is not red 21 A meteor is a the trail left by a rock or sand as it passes through Earth s atmosphere b sand or rock found on the ground c a solar wind particle d a rock found between the orbits of Mars and Jupiter e a rock found in a museum 22 The maria on the Moon are thought to have originated as a areas eroded by wind before the Moon lost its atmosphere b uplifted plains highlands c tectonic activity d bodies of water which are now driedup e lava ows 23 Venus39s magnetic field produces which of the following a a connection between the surface of Venus and that of its satellite b strong lightning discharges c strong aurora d a very hot surface temperature e none of the above since Venus has no significant magnetic field 24 Gaps in the rings of Saturn are caused by gravitational forces exerted by moons called a retrograde moons b ring moons c harvest moons d Galilean moons e shepherd moons 25 Spring tides occur during what two phases of the Moon a New and 1st Quarter b New and Full c Full and Gibbous phases d Full and 3rd Quarter e 1st and 3rd Quarter 26 These very dark black asteroids probably contain the most primitive material in the solar system a Metallic type b Silicate type c Stones d Achondrites e Carbonaceous type 27 Which planet is most similar to Neptune a Pluto b Uranus c Saturn d Mercury e Jupiter 28 The lunar maria are presumed younger than the highlands because a they are lighter b they have more craters c they have fewer craters d they are darker e they used to have water 29 The following four statements are typical of a certain planet in the solar system 1 Very strong radio emission due to a very intense magnetic eld 2 Rotation period is about 10 hours long 3 The planet has many known satellites 4 The atmosphere shows a very prominent red atmospheric storm The planet is a Mars b Mercury c Jupiter d Pluto e Neptune 30 The greenhouse effect heats a planet because a more solar ultraviolet light is re ected from clouds b more sunlight gets in c infrared radiation gets trapped d Oxygen in the atmosphere heats up the surface e the winds don t blow too fast Answers 1 d 2 e 3 c 4 e 5 d 6d7a8c9clOc 11 b 12 a 13 c 14 b 15 b 16 b 17 a 18 b 19 a20 d 21 a22 e 23 e 24 e 25 b 26 e 27 b 28 c 29 c 30 c
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