Essential Cosmic Perspective
9th Edition
ISBN: 9780135795033
Author: Bennett
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 13EAP
What is the leading hypothesis for the Moon’s formation? What evidence supports this hypothesis?
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Students have asked these similar questions
Hellas Planitia includes the word "planitia" which is the latin word for "plain" in its name.
The name would seem to indicate thats Hellas Planitia is a low lying plain, yet it is clearly a crater, and a very large one at that.
The most probable reason for this discrepancy in its name is because:
a. It is a simple naming error that for some reason has so far escaped correction.
b. There is a disagreement among astronomers about the true nature of Hellas Planitia.
c. Its true nature was not apparent over 100 years ago when it was observed using ground based telescopes.
d. Astronomers really know its true nature and misconceptions among the public among the public are not of great concern to them.
Which of the following is least reasonable regarding impact craters?
Group of answer choices
The size and shape of the crater and the amount of material excavated depends on factors such as the velocity and mass of the impacting body and the geology of the surface.
Craters are most often are circular but more elongate craters can be produced with impactors striking the surface at very low angles.
The Moon has more craters than the Earth because of its strong tidal force on the impactors.
Objects from space typically hit Earth at about 20 km/s ande produce craters that can be approximately 20 times larger in diameter than the impacting objects.
The faster the incoming impactor, the larger the crater.
Based on the physical aspects of Catena Mendeleev, what is the most plausible explanation for how crater chains are formed on the Moon?
a. these craters chains are formed by a series of impacts from a passing comet or asteroid that just passed to close too the Moon and ended up colliding with the Moon
b. they are the result of surface collapse due to the prescence of an underground fault
c. they are primarily the result of secondary fragments hitting the lunar surface from an initially from an larger impact fragment that resulted in another larger, distant crater
Chapter 6 Solutions
Essential Cosmic Perspective
Ch. 6 - Prob. 1VSCCh. 6 - Prob. 2VSCCh. 6 - Prob. 3VSCCh. 6 - Prob. 1EAPCh. 6 - Prob. 2EAPCh. 6 - Prob. 3EAPCh. 6 - What are the basic differences between terrestrial...Ch. 6 - Prob. 5EAPCh. 6 - Prob. 6EAPCh. 6 - Prob. 7EAP
Ch. 6 - Describe the four categories of materials in the...Ch. 6 - Prob. 9EAPCh. 6 - Prob. 10EAPCh. 6 - Prob. 11EAPCh. 6 - Prob. 12EAPCh. 6 - What is the leading hypothesis for the Moon’s...Ch. 6 - Prob. 14EAPCh. 6 - Prob. 15EAPCh. 6 - Prob. 16EAPCh. 6 - Prob. 17EAPCh. 6 - Prob. 18EAPCh. 6 - Prob. 19EAPCh. 6 - Prob. 20EAPCh. 6 - Prob. 21EAPCh. 6 - Prob. 22EAPCh. 6 - Prob. 23EAPCh. 6 - Prob. 24EAPCh. 6 - Prob. 25EAPCh. 6 - The nebular theory holds that (a) our solar system...Ch. 6 - Prob. 27EAPCh. 6 - Which of the following did not occur during the...Ch. 6 - Prob. 29EAPCh. 6 - Prob. 30EAPCh. 6 - Leftover ice-rich planetesimals are called (a)...Ch. 6 - Prob. 32EAPCh. 6 - Prob. 33EAPCh. 6 - Prob. 34EAPCh. 6 - Group Discussion: Who Named the Planets? The names...Ch. 6 - Planetary Priorities. Suppose you were in charge...Ch. 6 - Explaining the Past. Test the nebular theory...Ch. 6 - Unanswered Questions. As discussed in this...Ch. 6 - Group Activity: A Cold Solar Nebula. The excess...Ch. 6 - True or False. Decide whether each statement is...Ch. 6 - Planetary Tour. Based on the brief planetary tour...Ch. 6 - Patterns of Motion. In one or two paragraphs,...Ch. 6 - Solar System Trends. Study the planetary data in...Ch. 6 - 42. Two Kinds of Planets. The jovian planets...Ch. 6 - An Early Solar Wind. Suppose the solar wind had...Ch. 6 - History of the Elements. Our bodies (arid most...Ch. 6 - Rocks from Other Solar Systems. Many leftovers’...Ch. 6 - Current Spacecraft Mission. Find a list of current...Ch. 6 - Prob. 50EAPCh. 6 - Lucky to Be Here? Considering the overall process...Ch. 6 - Radiometric Dating. You are dating rocks by their...Ch. 6 - Lunar Rocks. You are dating Moon rocks based on...Ch. 6 - Carbon-14 Dating. The half-life of carbori-14 s...Ch. 6 - What Are the Odds? The fact that all the planets...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Provide evidence to support a hypothesis about whether or not the Moon has plate tectonics.arrow_forwardWe believe that chains of comet fragments like Comet Shoemaker-Levy 9’s have collided not only with the jovian planets, but occasionally with their moons. What sort of features would you look for on the outer planet moons to find evidence of such collisions? (As an extra bonus, can you find any images of such features on a moon like Callisto? You can use an online site of planetary images, such as the Planetary Photojournal, at photojournal.jpl.nasa.gov.)arrow_forwardHow many impacts would you expect to strike a 100m2 region in one hour during Earth’s formation, assuming that Earth grew to its present size in 10 million years from particles averaging 100 grams each? (Hint: Assume that Earth had its current radius of 6378km.) (Notes: The surface area of a sphere is 4pir2 ; 1yr=3.2x107 .) a. About 1300. b. About 13 . c. About 13,000. d. About 130arrow_forward
- Why are Mercury and the Moon much more cratered than Earth? Explain how the number of craters indicates the age of a surface.arrow_forwardQuestion: The current and most scientifically accurate theory for the formation of the Moon is: a.) The large impact theory. b.) The capture theory. c.) The fission theory. d.) The twin formation theory.arrow_forward5) What is the ratio of the number of asteroid impacts on the moon to the number of impacts on Earth? Assume the asteroids are originally traveling 15 km/s and use the following data. Mass: 5.97x1024 kg Earth, 7.3x1022 kg moon Radius: 6372 km Earth, 1738 km moon Note we count the number of craters on the moon to infer the number of impacts on Earth because many Earth craters have been hidden by erosion.arrow_forward
- Enceladus is a moon of Saturn. What unique feature does it possess? which is the correct answer? Cryovolcanism, where water erupts instead of silicate rock A dense system of rings An atmosphere thicker than Earth's Internal heating due to radioactivity Has an orbit inside Saturn's ringsarrow_forwardAlthough Deimos is smaller than Phobos, Deimos has more debris on its surface. This difference in the two moons is probably the result of a. the greater number of impact craters on Deimos. b. Martian gravity, which is strong enough to pull debris off the surface of Phobos. c. the lack of volcanic activity on the surface of Phobos. d. the comparatively weaker gravity on Deimos. e. the slower rotation rate of Deimos on its axis.arrow_forwardJupiter's moon Metis has a radius of only 20 km, and a mass of 9 x 1016 kg. Answer the following: a) Calculate this moon's average density. b) Based on your result above, would you say that Metis is made primarily of rock or ice? Justify your answer. (Hint: Density of ice is 920 kg/m3)arrow_forward
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