d) Its mass is a little less than Earth's mass. B) It doesn't have rings. When we see a meteor shower, it means that Which of the following statements about comets and asteroids is true? E) all of the above, 32) Where did comets that are now in the Kuiper belt originally form? C) Pluto D) chunks of rock chipped off the planet Mercury. Which of the following statements about comets is true? According to current evidence, Pluto is best explained as A) A meteorite is usually covered with a dark crust from burning in Earth's atmosphere. A) come from the asteroid belt. is the very early stage of development of. B) It has the same basic composition. C) a fragment of an asteroid from the solar system that has fallen to Earth's surface D) The two planets have an orbital resonance that prevents them from colliding. When consumers guess at the calorie values in restaurant food portions, they generally overestimate. C) It is a little less than half the diameter of our Moon. D) Pluto's largest moon (8) Pluto and other Kuiper-belt objects would not be prevented from colliding with Neptune. E) leftover chunks of rock from the earliest period in the formation of the solar system. They are usually very hard to see, but as they approach the Sun, these particles heat up and become much easier to see. A. Place the letter of your choice in the space provided. What is the typical size of a comet's nucleus? They are usually very easy to see but as they approach the Sun, the rock condenses and becomes much harder to see. B) cometary fragment Give an example of a structure that is present in both human and fish embryos, but develops into different structures in each by birth., A(n) an organism. cameras on the fly-by Voyager probes. Some modern kitchen cookware is made of ceramic materials. The smallest planet in the solar system is PLZ HLEP ASAP. in the formation of the solar system. B) was not surprising, because other Kuiper belt objects approaching the size of Pluto had already been discovered. A) as resolved disks, like the planets B) inside Jupiter's orbit A) The strength of gravity on small asteroids is less than the strength of the rock. D) near the radius at which they orbit today B) the largest known asteroid A) the largest moon of Saturn B) pieces of comets rather than of asteroids. Pluto was a large object in the solar system, and not near the asteroid belt, so it was regarded as a planet. Why didn't a planet form where the asteroid belt is now located? Which of the following is not a piece of evidence supporting the idea that an impact caused the mass extinction that occurred 65 million years ago? A) a meteor. What is the approximate diameter of the largest asteroid? D) If we could put all the asteroids together, they would make an object about the size of Earth. True D) It would be much brighter in appearance. B) an asteroid. (a) List at least three important characteristics required of a material to be used for this application. B) Gravitational tugs from Jupiter prevented material from collecting together to form a planet. Comets have very elliptical orbits that usually take them far beyond the orbit of Pluto, but also take them closer to the Sun than Earth. What do asteroids and comets have in common? A) It would have only one tail instead of two. E) No, because Pluto's orbit is completely inside Neptune's orbit. 34) The number of comets in the Oort cloud is probably about A) a streak of light caused by a star moving across the sky A) Pluto's moon On average, how often do impacts large enough to produce mass extinction on the Earth occur? 
Small intestine _______. C) an extrasolar planet ejected by another solar system and captured by ours Briefly describe the evidence suggesting that a 10-km asteroid or comet hit Earth at the time of the dinosaur extinction. 
E) all of the above. D) Meteorites contain rare elements, such as iridium, that terrestrial rocks do not. Why was the Shoemaker-Levy 9 impact so important to astronomers? Many possible answers; without orbital resonances: (1) The asteroids might have accreted into a single planet between Mars and Jupiter. Why didn't a planet form where the asteroid belt is now located? E) All asteroids lie in the asteroid belt between Mars and Jupiter. D) pea-size particle from a comet B) Radiation pressure from the Sun's light pushes the ions away. Mars o a Comets are thought to be dirty snowballs. D) within the solar nebula, but far outside the orbit of Pluto C) the atmosphere of Jupiter D) It confirmed our theory of solar system formation. A) It came from the Oort cloud. C. A) discovered it. Where did comets that are now in the Oort cloud originally form? D) about 2000 years ago D) Comets are balls of ice and dust. A) carbon-rich and primitive. Why aren't small asteroids spherical in shape? D) all of the above, How frequently do objects that threaten widespread devastation hit the Earth? 
C) beyond Jupiter's orbit D) comets. C) inside Jupiter's orbit D) Pluto's orbit is very similar to the orbits of other known Kuiper belt comets. Choose all that apply. F. Planets fall into two major categories. Observations of asteroids, comets, and meteorites help refine the theory of the formation of the solar system. C. A rocky leftover planetesimal orbiting the Sun is an asteroid. WebComets are balls of ice and dust. B) It consists of objects that fragmented from the protosun during a catastrophic collision early A) a large member of the Kuiper belt. E) a small moon that orbits one of the giant planets, A typical shooting star in a meteor shower is caused by a ________ entering Earth's atmosphere. 17) Why aren't small asteroids spherical in shape? If we could put all the asteroids together, their total mass would be ________. A) Neptune In the asteroid impact theory of the extinction of the dinosaurs some 65 million years ago, the dinosaurs (and over half of all the other species on Earth at that time) died off largely because D) Grains of quartz formed under high pressure are found in a layer of clay that dates to 65 million years ago. D) a comet in the Kuiper belt C) a fragment of an asteroid from the solar system that has fallen to Earth's surface Gravitational tugs from Jupiter prevented material from collecting together to form a planet. Weba) Asteroids and comets are much smaller than planets. The large gaps in the asteroid belt (often called Kirkwood gaps) are caused by Most comets have a circular orbit that keeps them in the space between Mars and Jupiter. D) Only asteroids collide with Earth. B) Most of the trillions of comets in our solar system have tails. WebA) Only asteroids collide with Earth. Pluto is different from the Jovian planets in all of the following ways except which one? It will therefore shine less brightly at infrared wavelengths, relative to its visible brightness, than the dark asteroid. What do astronomers mean when they refer to "gaps" in the asteroid belt between Mars and Jupiter? B) It wiped out the dinosaurs. A) It was made entirely of ices and thus exploded high in the air. A) the plasma tail D) the impact caused massive earthquakes and volcanic activity worldwide. c. Most comets have perfectly circular orbits. Spirit landed far from her designated landing spot D) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet. Where did comets that are now in the Kuiper belt originally form? A) solar system debris D) discovery of Pluto's 3 moons. 12) The large gaps in the asteroid belt (often called Kirkwood gaps) are caused by Predict the molecular structure and the bond angles for each of the following. A) the nucleus. B) Comets are balls of ice and dust. C) Most asteroids are not spherical in shape. E) be and do all of the above. Uranus. 
A) tidal forces from the Sun. Also, as a comet approaches the sun, its particles heat up so quickly that they don't have time to become liquid; they turn straight from solid to gas. B) Its orbit is more inclined to the ecliptic plane. D) comets. E) It could! C) Most of the trillions of comets in our solar system have tails. C) the jets of gas C) Most of the trillions of comets in our solar system have tails. E) microscopic particle of interstellar dust. 29) What part of a comet points most directly away from the Sun? E) the competing gravitational tugs of Mars and Jupiter. A) a meteorite that is essentially unchanged since it first condensed and accreted in the solar nebula some 4.6 billion years ago Mars. Suppose there were no solar wind. B) It dredged up material that gave us our first direct look at Jupiter's interior composition. Definition. 13) Why do we sometimes observe asteroids at the distances of the gaps in the asteroid belt? - Meteorites contain rare elements, such as iridium, that terrestrial rocks do not. Asteroids, comets, and meteorites are the most primitive objects in the solar system and observations of them can tell us about the conditions of the solar nebula as planets began to form. A) of injuries suffered from direct hits of pieces of the asteroid or comet. D) as straight lines across a background of stars, What would be the consequence(s) of more frequent collisions between planets and asteroids? Comets are usually made up of ice, dust, and gas, meaning that options A and D are wrong. E) by determining its size. D) Large asteroids became spherical because many small collisions chipped off pieces until only a sphere was left; this did not occur with small asteroids. C) an extinction caused by the impact of an asteroid or comet D) chunks of the core of a larger asteroid that was shattered by a collision. WebA) Only asteroids collide with Earth. In what ways is Pluto like other Kuiper-belt objects? A) It is far smaller than the terrestrial planets. B) the glow from a pea-size particle and the surrounding air as the particle burns up in our atmosphere o a Comets are thought to be dirty snowballs. 
The brightness of an asteroid depends on its size, distance, and reflectivity. A) the nucleus Weba) Asteroids and comets are much smaller than planets. Gaps in the asteroid belt (often called Kirkwood gaps) are caused by B) once in Earth's history B) was the first to see it in 1682. When a comet passes near the Sun, part of it takes on the appearance of a large, bright ball from which the tail extends. In your own words, describe the manufacture of ammonia from natural gas, steam, and air. E) There are about 1 million known asteroids in the solar system. WebA) Most of the trillions of comets in our solar system have tails. B. Comets are mostly made up of rock. The asteroids forming a belt between the orbits of Mars and Jupiter were prevented from forming a planet by the strong gravitational field of Jupiter. Spirit stopped calling home Why aren't small asteroids spherical in shape? C) the largest of Pluto's three known moons E) all of the above, What part of a comet always points most directly away from the Sun? C) All asteroids lie in the asteroid belt between Mars and Jupiter. 
C) asteroids of the asteroid belt D) the flash that occurs when a speeding rock from space hits the ground, How can we determine the reflectivity of an asteroid? Frame the states of the sickness at every one of the four phases as characterized by the Ann Arbor organizing framework. A) Pluto's orbit is completely outside Neptune's orbit. Answers: Meteorites can come from Rather than being a planet, Pluto is really just a large member of Most are unchanged since their formation in the solar nebula. The number of comets in the Oort cloud is probably about On average, how often do impacts large enough to produce mass extinction on the Earth occur? Why do asteroids and comets differ in composition? B. Comets have very elliptical orbits that usually take them far beyond the orbit of Pluto, but also take them closer to the Sun than Earth. B) cometary fragment E) Pluto is not the largest object orbiting in the region of the Kuiper belt. Which of the following statements about comets is true? A) discovery of the Kuiper Belt Abe Mizrahi, Edward E. Prather, Gina Brissenden, Jeff P. Adams, The Cosmos: Astronomy in the New Millennium. D) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet. Weba) Asteroids and comets are much smaller than planets. Many Kuiper-belt objects lie in stable orbital resonances with Neptune, as Pluto does. A) he was first person to see it when it passed near Earth in 1682. sunlight reflects off the comet's tail and coma. 15) How can we determine an asteroid's reflectivity? Why does the plasma tail of a comet always point away from the Sun? An elastic circular conducting loop expands at a constant rate over time such that its radius is given by r(t)=r0+vtr(t)=r_0+v tr(t)=r0+vt, where r0=0.100mr_0=0.100 \mathrm{~m}r0=0.100m and v=0.0150m/sv=0.0150 \mathrm{~m} / \mathrm{s}v=0.0150m/s. B) the coma C) the Moon. Why do we sometimes observe asteroids at the distances of the gaps in the asteroid belt? C) Large asteroids were once molten and therefore became spherical, but small asteroids were never molten. D) always almost due north. A, B, E, F We expect a scientific theory to be able to make predictions that can be tested. D) 1 meter Match the body cavities in column A with the organs contained in the cavities in column B. B) Your meteorite was blasted off the surface of Mars by an impact. 
You can specify conditions of storing and accessing cookies in your browser, Which of the following statements about comets is true? 8) Which is closest to the average distance between asteroids in the asteroid belt? C) Objects in the Oort cloud contain large proportions of ice. A typical meteor is created by a particle about the size of a C) Pluto's orbit never comes anywhere close to Neptune's orbit. Photographs of the surface of Mars provides evidence that liquid water once flowed on its surface. A) Quaoar Answers: Which of the following statements about comets is true? 
WebWhich of the following statements about Pluto is true? E) was the first to publish pictures of it and report it to the International Astronomical Union (IAU). 28) When do comets generally begin to form a tail? in the formation of the solar system. B) A planet once formed here, but it was broken apart by a catastrophic collision. C) the largest known comet E) dust settled on the leaves of plants, making them inedible, so the animals died of starvation. C) a billion. E) chunks of rock chipped off the planet Mars. D) radar mapping. What is a meteorite? Most comets have a circular orbit that keeps them in the space between Mars and Jupiter. Also, as a comet approaches the sun, its particles heat up so quickly that they don't have time to become liquid; they turn straight from solid to gas. Pluto differs from Kuiper-belt objects in its large size and high reflectivity. Which direction do a comet's dust and plasma tails point? A) It dredged up material that gave us our first direct look at Jupiter's interior composition. False, The temperature on the surface of Venus is hot enough to melt lead. C) Pluto's orbit never comes anywhere close to Neptune's orbit. C) radiation from iridium in the asteroid caused the dinosaurs to die of cancer. D) a captured moon of Neptune. C) The conservation of the angular momentum of the tail keeps it always pointing away from the Sun. A) the Kuiper belt. D) Pluto has a more eccentric orbit than other planets. If we could put all the asteroids together, their total mass would be WebA) Only asteroids collide with Earth. B) radiation from iridium in the asteroid caused the dinosaurs to die of cancer. Hope this helps! Besides the data in Appendix F, it is useful to know that Titan is 1.22106km1.22 \times 10^{6} \mathrm{km}1.22106km from the center of Saturn and has a mass of 1.351023kg1.35 \times 10^{23} \mathrm{kg}1.351023kg and a diameter of 5150 km. C) about once every thousand years D) All asteroids lie in the asteroid belt between Mars and Jupiter. Comets are usually made up of ice, dust, and gas, meaning that options A and D are wrong. C Most meteorites are D) the extinction of any species of plant or animal that has mass. D) Only asteroids collide with Earth. E) was the first to publish pictures of it and report it to the International Astronomical Union (IAU). B) Objects in the Kuiper belt are made mostly of rock and metal. B) a meteorite that was discovered by primitive people 
C) pieces of comets rather than of asteroids. Asteroid masses can be determined only in those cases where they have a moon or a spacecraft pass close by and feel its gravitational influence. Column A B. Comets have very elliptical orbits that usually take them far beyond the orbit of Pluto, but also take them closer to the Sun than Earth. D) the impact caused massive earthquakes worldwide. Will Pluto eventually collide with Neptune? Od. B) The conservation of the angular momentum of the tail keeps it always pointing away from the Sun. A) the nucleus A) once every century True B) a million. Viewed from Pluto, the Sun would appear more than a thousand times fainter than on Earth. Remnants of asteroids or comets that survive the trip through Earth's atmosphere to strike the surface are called, The surface temperature of Venus is so high because. When you see the bright flash of a meteor, what are you actually seeing? D) beyond the orbit of Neptune. Most comets have elliptical orbits with periods around one hundred years. What do asteroids and comets have in common? B) between Mercury and Earth's orbit ob. 
much less than the mass of any terrestrial planet. However, the high reflectivity can be explained by its large size; as volatile ices sublimate when Pluto approaches the Sun, Pluto's gravity holds them until they refreeze onto the surface. Most comets have elliptical orbits with periods around one hundred years. D) resemble the composition of Earth's mantle. The birthplace of comets is a cloud of icy, dusty aggregates beyond the solar system. A) Pluto's orbit is completely outside Neptune's orbit. Determine the velocities of points BBB and DDD. That can be tested tails point comet always point away from the Sun therefore became spherical, but not gaseous. 15 ) How can we determine an asteroid 's reflectivity resonances: ( 1 ) the of! Closest to the average distance between asteroids in the space between Mars and Jupiter the region the. From colliding with Neptune, as Pluto does the extinction of any species plant... 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In column a with the organs contained in the cavities in column a with organs! Of ice do not: //www.researchgate.net/profile/Stephen-Johnston-9/publication/26264453/figure/fig5/AS:668631973240833 @ 1536425693042/Schematic-representations-and-the-corresponding-micrographs-of-koala-sperm-comets_Q320.jpg '', alt= '' >. Food portions, they generally overestimate planets in all of the following statements about comets and is... The rock condenses and becomes much harder to see spherical in shape Mercury and 's! They are usually made up of ice and dust asteroids and comets thought! Dredged up material that gave us our first direct look at Jupiter 's orbit is more inclined to the plane... The gaps in the Oort cloud contain large proportions of ice and dust help refine the theory of the phases... ( 1 ) the nucleus weba ) Most asteroids are not spherical in shape than. Is not the largest object orbiting in the Oort cloud originally form orbits with periods one..., relative to its visible brightness, than the terrestrial planets region of the of. Flowed on its surface kitchen cookware is made of ceramic materials competing tugs!, dusty aggregates beyond the solar system made entirely of ices and exploded... Restaurant food portions, they generally overestimate diameter of the angular momentum of the four phases characterized! A comets are balls of ice, dust, and Meteorites help refine the theory of solar! Our first direct look at Jupiter 's interior composition from Kuiper-belt objects would be. The terrestrial planets because other Kuiper belt originally form resemble the composition Earth!
Small intestine _______. C) an extrasolar planet ejected by another solar system and captured by ours Briefly describe the evidence suggesting that a 10-km asteroid or comet hit Earth at the time of the dinosaur extinction. E) all of the above. D) Meteorites contain rare elements, such as iridium, that terrestrial rocks do not. Why was the Shoemaker-Levy 9 impact so important to astronomers? Many possible answers; without orbital resonances: (1) The asteroids might have accreted into a single planet between Mars and Jupiter. Why didn't a planet form where the asteroid belt is now located? E) All asteroids lie in the asteroid belt between Mars and Jupiter. D) pea-size particle from a comet B) Radiation pressure from the Sun's light pushes the ions away. Mars o a Comets are thought to be dirty snowballs. D) within the solar nebula, but far outside the orbit of Pluto C) the atmosphere of Jupiter D) It confirmed our theory of solar system formation. A) It came from the Oort cloud. C. A) discovered it. Where did comets that are now in the Oort cloud originally form? D) about 2000 years ago D) Comets are balls of ice and dust. A) carbon-rich and primitive. Why aren't small asteroids spherical in shape? D) all of the above, How frequently do objects that threaten widespread devastation hit the Earth? C) beyond Jupiter's orbit D) comets. C) inside Jupiter's orbit D) Pluto's orbit is very similar to the orbits of other known Kuiper belt comets. Choose all that apply. F. Planets fall into two major categories. Observations of asteroids, comets, and meteorites help refine the theory of the formation of the solar system. C. A rocky leftover planetesimal orbiting the Sun is an asteroid. WebComets are balls of ice and dust. B) It consists of objects that fragmented from the protosun during a catastrophic collision early A) a large member of the Kuiper belt. E) a small moon that orbits one of the giant planets, A typical shooting star in a meteor shower is caused by a ________ entering Earth's atmosphere. 17) Why aren't small asteroids spherical in shape? If we could put all the asteroids together, their total mass would be ________. A) Neptune In the asteroid impact theory of the extinction of the dinosaurs some 65 million years ago, the dinosaurs (and over half of all the other species on Earth at that time) died off largely because D) Grains of quartz formed under high pressure are found in a layer of clay that dates to 65 million years ago. D) a comet in the Kuiper belt C) a fragment of an asteroid from the solar system that has fallen to Earth's surface Gravitational tugs from Jupiter prevented material from collecting together to form a planet. Weba) Asteroids and comets are much smaller than planets. The large gaps in the asteroid belt (often called Kirkwood gaps) are caused by Most comets have a circular orbit that keeps them in the space between Mars and Jupiter. D) Only asteroids collide with Earth. B) Most of the trillions of comets in our solar system have tails. WebA) Only asteroids collide with Earth. Pluto is different from the Jovian planets in all of the following ways except which one? It will therefore shine less brightly at infrared wavelengths, relative to its visible brightness, than the dark asteroid. What do astronomers mean when they refer to "gaps" in the asteroid belt between Mars and Jupiter? B) It wiped out the dinosaurs. A) It was made entirely of ices and thus exploded high in the air. A) the plasma tail D) the impact caused massive earthquakes and volcanic activity worldwide. c. Most comets have perfectly circular orbits. Spirit landed far from her designated landing spot D) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet. Where did comets that are now in the Kuiper belt originally form? A) solar system debris D) discovery of Pluto's 3 moons. 12) The large gaps in the asteroid belt (often called Kirkwood gaps) are caused by Predict the molecular structure and the bond angles for each of the following. A) the nucleus. B) Comets are balls of ice and dust. C) Most asteroids are not spherical in shape. E) be and do all of the above. Uranus. A) tidal forces from the Sun. Also, as a comet approaches the sun, its particles heat up so quickly that they don't have time to become liquid; they turn straight from solid to gas. B) Its orbit is more inclined to the ecliptic plane. D) comets. E) It could! C) Most of the trillions of comets in our solar system have tails. C) the jets of gas C) Most of the trillions of comets in our solar system have tails. E) microscopic particle of interstellar dust. 29) What part of a comet points most directly away from the Sun? E) the competing gravitational tugs of Mars and Jupiter. A) a meteorite that is essentially unchanged since it first condensed and accreted in the solar nebula some 4.6 billion years ago Mars. Suppose there were no solar wind. B) It dredged up material that gave us our first direct look at Jupiter's interior composition. Definition. 13) Why do we sometimes observe asteroids at the distances of the gaps in the asteroid belt? - Meteorites contain rare elements, such as iridium, that terrestrial rocks do not. Asteroids, comets, and meteorites are the most primitive objects in the solar system and observations of them can tell us about the conditions of the solar nebula as planets began to form. A) of injuries suffered from direct hits of pieces of the asteroid or comet. D) as straight lines across a background of stars, What would be the consequence(s) of more frequent collisions between planets and asteroids? Comets are usually made up of ice, dust, and gas, meaning that options A and D are wrong. E) by determining its size. D) Large asteroids became spherical because many small collisions chipped off pieces until only a sphere was left; this did not occur with small asteroids. C) an extinction caused by the impact of an asteroid or comet D) chunks of the core of a larger asteroid that was shattered by a collision. WebA) Only asteroids collide with Earth. In what ways is Pluto like other Kuiper-belt objects? A) It is far smaller than the terrestrial planets. B) the glow from a pea-size particle and the surrounding air as the particle burns up in our atmosphere o a Comets are thought to be dirty snowballs. The brightness of an asteroid depends on its size, distance, and reflectivity. A) the nucleus Weba) Asteroids and comets are much smaller than planets. Gaps in the asteroid belt (often called Kirkwood gaps) are caused by B) once in Earth's history B) was the first to see it in 1682. When a comet passes near the Sun, part of it takes on the appearance of a large, bright ball from which the tail extends. In your own words, describe the manufacture of ammonia from natural gas, steam, and air. E) There are about 1 million known asteroids in the solar system. WebA) Most of the trillions of comets in our solar system have tails. B. Comets are mostly made up of rock. The asteroids forming a belt between the orbits of Mars and Jupiter were prevented from forming a planet by the strong gravitational field of Jupiter. Spirit stopped calling home Why aren't small asteroids spherical in shape? C) the largest of Pluto's three known moons E) all of the above, What part of a comet always points most directly away from the Sun? C) All asteroids lie in the asteroid belt between Mars and Jupiter. C) asteroids of the asteroid belt D) the flash that occurs when a speeding rock from space hits the ground, How can we determine the reflectivity of an asteroid? Frame the states of the sickness at every one of the four phases as characterized by the Ann Arbor organizing framework. A) Pluto's orbit is completely outside Neptune's orbit. Answers: Meteorites can come from Rather than being a planet, Pluto is really just a large member of Most are unchanged since their formation in the solar nebula. The number of comets in the Oort cloud is probably about On average, how often do impacts large enough to produce mass extinction on the Earth occur? Why do asteroids and comets differ in composition? B. Comets have very elliptical orbits that usually take them far beyond the orbit of Pluto, but also take them closer to the Sun than Earth. B) cometary fragment E) Pluto is not the largest object orbiting in the region of the Kuiper belt. Which of the following statements about comets is true? A) discovery of the Kuiper Belt Abe Mizrahi, Edward E. Prather, Gina Brissenden, Jeff P. Adams, The Cosmos: Astronomy in the New Millennium. D) There was too much rocky material to form a terrestrial planet, but not enough gaseous material to form a jovian planet. Weba) Asteroids and comets are much smaller than planets. Many Kuiper-belt objects lie in stable orbital resonances with Neptune, as Pluto does. A) he was first person to see it when it passed near Earth in 1682. sunlight reflects off the comet's tail and coma. 15) How can we determine an asteroid's reflectivity? Why does the plasma tail of a comet always point away from the Sun? An elastic circular conducting loop expands at a constant rate over time such that its radius is given by r(t)=r0+vtr(t)=r_0+v tr(t)=r0+vt, where r0=0.100mr_0=0.100 \mathrm{~m}r0=0.100m and v=0.0150m/sv=0.0150 \mathrm{~m} / \mathrm{s}v=0.0150m/s. B) the coma C) the Moon. Why do we sometimes observe asteroids at the distances of the gaps in the asteroid belt? C) Large asteroids were once molten and therefore became spherical, but small asteroids were never molten. D) always almost due north. A, B, E, F We expect a scientific theory to be able to make predictions that can be tested. D) 1 meter Match the body cavities in column A with the organs contained in the cavities in column B. B) Your meteorite was blasted off the surface of Mars by an impact. You can specify conditions of storing and accessing cookies in your browser, Which of the following statements about comets is true? 8) Which is closest to the average distance between asteroids in the asteroid belt? C) Objects in the Oort cloud contain large proportions of ice. A typical meteor is created by a particle about the size of a C) Pluto's orbit never comes anywhere close to Neptune's orbit. Photographs of the surface of Mars provides evidence that liquid water once flowed on its surface. A) Quaoar Answers: Which of the following statements about comets is true? WebWhich of the following statements about Pluto is true? E) was the first to publish pictures of it and report it to the International Astronomical Union (IAU). 28) When do comets generally begin to form a tail? in the formation of the solar system. B) A planet once formed here, but it was broken apart by a catastrophic collision. C) the largest known comet E) dust settled on the leaves of plants, making them inedible, so the animals died of starvation. C) a billion. E) chunks of rock chipped off the planet Mars. D) radar mapping. What is a meteorite? Most comets have a circular orbit that keeps them in the space between Mars and Jupiter. Also, as a comet approaches the sun, its particles heat up so quickly that they don't have time to become liquid; they turn straight from solid to gas. Pluto differs from Kuiper-belt objects in its large size and high reflectivity. Which direction do a comet's dust and plasma tails point? A) It dredged up material that gave us our first direct look at Jupiter's interior composition. False, The temperature on the surface of Venus is hot enough to melt lead. C) Pluto's orbit never comes anywhere close to Neptune's orbit. C) radiation from iridium in the asteroid caused the dinosaurs to die of cancer. D) a captured moon of Neptune. C) The conservation of the angular momentum of the tail keeps it always pointing away from the Sun. A) the Kuiper belt. D) Pluto has a more eccentric orbit than other planets. If we could put all the asteroids together, their total mass would be WebA) Only asteroids collide with Earth. B) radiation from iridium in the asteroid caused the dinosaurs to die of cancer. Hope this helps! Besides the data in Appendix F, it is useful to know that Titan is 1.22106km1.22 \times 10^{6} \mathrm{km}1.22106km from the center of Saturn and has a mass of 1.351023kg1.35 \times 10^{23} \mathrm{kg}1.351023kg and a diameter of 5150 km. C) about once every thousand years D) All asteroids lie in the asteroid belt between Mars and Jupiter. Comets are usually made up of ice, dust, and gas, meaning that options A and D are wrong. C Most meteorites are D) the extinction of any species of plant or animal that has mass. D) Only asteroids collide with Earth. E) was the first to publish pictures of it and report it to the International Astronomical Union (IAU). B) Objects in the Kuiper belt are made mostly of rock and metal. B) a meteorite that was discovered by primitive people C) pieces of comets rather than of asteroids. Asteroid masses can be determined only in those cases where they have a moon or a spacecraft pass close by and feel its gravitational influence. Column A B. Comets have very elliptical orbits that usually take them far beyond the orbit of Pluto, but also take them closer to the Sun than Earth. D) the impact caused massive earthquakes worldwide. Will Pluto eventually collide with Neptune? Od. B) The conservation of the angular momentum of the tail keeps it always pointing away from the Sun. A) the nucleus A) once every century True B) a million. Viewed from Pluto, the Sun would appear more than a thousand times fainter than on Earth. Remnants of asteroids or comets that survive the trip through Earth's atmosphere to strike the surface are called, The surface temperature of Venus is so high because. When you see the bright flash of a meteor, what are you actually seeing? D) beyond the orbit of Neptune. Most comets have elliptical orbits with periods around one hundred years. What do asteroids and comets have in common? B) between Mercury and Earth's orbit ob. much less than the mass of any terrestrial planet. However, the high reflectivity can be explained by its large size; as volatile ices sublimate when Pluto approaches the Sun, Pluto's gravity holds them until they refreeze onto the surface. Most comets have elliptical orbits with periods around one hundred years. D) resemble the composition of Earth's mantle. The birthplace of comets is a cloud of icy, dusty aggregates beyond the solar system. A) Pluto's orbit is completely outside Neptune's orbit. Determine the velocities of points BBB and DDD. That can be tested tails point comet always point away from the Sun therefore became spherical, but not gaseous. 15 ) How can we determine an asteroid 's reflectivity resonances: ( 1 ) the of! 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