EOSC 310 99A 2020W Quizzes Midterm Exam - 1! Midterm Exam - 1 Due Oct 13 at 2:59pm Points 36 Ques!ons 36 Available Oct 8 at 3pm - Oct 13 at 2:59pm 5 days Time Limit 40 Minutes Instruc!ons This quiz was locked Oct 13 at 2:59pm. A!empt History A"empt Time Score LATEST A!empt 1 20 minutes 34 out of 36 Score for this quiz: 34 out of 36 Submi!ed Oct 12 at 12:53pm This a!empt took 20 minutes. This is a formal graded Midterm Exam that consists of 36 mul"ple choice and true/false ques"ons. It runs for 40 minutes. It must be taken in one si#ng. DO NOT OPEN THIS EXAM UNTIL YOU ARE READY TO TAKE IT, AS IT WILL AUTOMATICALLY SUBMIT AFTER 40 MINUTES AND YOU WILL NOT BE ABLE TO RETAKE IT AGAIN. If you lose your internet connec"on or your computer shuts down during the exam, log back in as quickly as you can and keep going. Your exam will not be reset for these sorts of reasons. This Exam is 'open book'. You may look at the course materials while you take the exam. That said, keep an eye on the "me. If you try to look up too many things, you will run out! Good luck! 1 / 1 ptsQues!on 1 Which of the following ARE NOT examples of natural systems? Cells, the climate and animals. Finance, commerce and poli"cs. Correct! Earth, tectonics and humans. All of the above. 1 / 1 ptsQues!on 2 Reduc!onist thinking is the belief that breaking a system into parts loses key aspects of the rela!onships between the parts and that the whole is greater than the sum of its parts. True False Correct! 1 / 1 ptsQues!on 3 In a natural system, what is fractal behaviour/ self similarity? When a system looks complex at all scales. When a system looks the same at all scales. Correct! When a system looks complex at small scales, but simple at larger scales. When a system looks simple at small scales, but complex at larger scales. 1 / 1 ptsQues!on 4 A system is chao!c when: Predic"on is severely limited. It displays sensi"vity to small changes in ini"al condi"ons. The behaviour of the system can be described as random. All of the above. Correct! 1 / 1 ptsQues!on 5 Why is scale important when we study natural systems? Small and large scale phenomena are completely separate en""es, and this cannot be studied together. Correct! Small scale phenomena can always be scaled up to behave the same as large scale phenomena, and thus can be studied together. Large scale phenomena can always be scaled down to behave the same as small scale phenomena, and thus can be studied together. All of the above. 1 / 1 ptsQues!on 6 We measure the distance to distant stars by using the pulsa"ons of luminosity of nearby stars. True Correct! False 1 / 1 ptsQues!on 7 Which theory states that despite expansion of the universe, the shape of the space is preserved? NASA's Law Hubble's Law Correct! COBE's Law Apollo's Law 1 / 1 ptsQues!on 8 Which shi$ is evidence that the universe is expanding? Red Correct! Blue Yellow Green 1 / 1 ptsQues!on 9 The universe is ... Not finite. Not sta"c. Expanding. All of the above. Correct! 1 / 1 ptsQues!on 10 All objects emit radia"on, the wavelength and intensity of this radia"on vary with temperature. True Correct! False 1 / 1 ptsQues!on 11 A strong force will "kick" in when protos come within how far of each other? One hundredth of a cen"meter. One thousandth of a cen"meter. One millionth of a cen"meter. One trillionth of a cen"meter. Correct! 1 / 1 ptsQues!on 12 What does the equa"on mean? The mass of an object is dependent on the speed of light. The energy an object has is dependent on the speed of light. The mass on an object is dependent on the energy of the object. Correct! The mass of an object is the same if it is in mo"on or sta"onery. 1 / 1 ptsQues!on 13 When can nuclear fusion occur? When the mass of the product nucleus is lower than that of the reac"ng nuclei. When the reac"ng nuclei touch. When the environment is extremely hot and confined. All of the above. Correct! 1 / 1 ptsQues!on 14 Supernova nucleosynthesis is the process by which the lightest elements (up to ) are formed. True False Correct! 0 / 1 ptsQues!on 15 We have observed supernova explosions. This is evidence in support of the stellar hypothesis. True Correct Answer False You Answered 1 / 1 ptsQues!on 16 Which number on the periodic table represents the number of protons in the nucleus of an atom of each element? The atomic mass. The atomic number. Correct! The electronega"vity. The first ioniza"on energy. 1 / 1 ptsQues!on 17 Elements on the periodic table are made strictly of one type of atom. True Correct! False 1 / 1 ptsQues!on 18 Elements with only one or two electrons in their outer shell are ... Not very chemically reac"ve. Very chemically reac"ve. Correct! Chemically non-reac"ve. Chemically stable. 1 / 1 ptsQues!on 19 On Earth, where pressure = 1 atmosphere, CO is a gas at “normal” temperatures. What would the temperature have to be for CO to convert to a solid state? CO2.PNG 2 2 -100 degrees C. -78 degrees C. Correct! -56.6 degrees C. 31 degrees C. 1 / 1 ptsQues!on 20 Quartz is an example of a silicate mineral, which of the following describes its structure? Isolated tetrahedra. Singles chains of tetrahedra. Sheets of tetrahedra. 3D framework of tetrahedra. Correct! 1 / 1 ptsQues!on 21 Elements that are solids at high temperatures are vola"le. True False Correct! 1 / 1 ptsQues!on 22 Which of the following are not organic molecule? Sugars. Fats in animals. Carbon dioxide. Correct! DNA. 1 / 1 ptsQues!on 23 Chondrites are approximately 4.56 billion years old, the same age as the Earth. What does this mean? Chondrite meteorites formed before the planets were formed. Chondrite meteorites formed a$er the planets were formed. Chondrite meteorites formed at the same "me as the planets were formed. Correct! All of the above. 1 / 1 ptsQues!on 24 Which of the following is not a dominant metal in chondrites? Magnesium Iron Potassium Correct! Silicon 1 / 1 ptsQues!on 25 Which of the following best describes the inner and outer planets? The inner planets are mostly gas and ice whereas the outer planets are mostly rock and metal. The inner planets are mostly metal and ice whereas the outer planets are rock and gas. The inner planets are mostly rock and metal and the outer planets are mostly gas and ice. Correct! The inner planets are mostly rock and gas and the outer planets are mostly metal and ice. 1 / 1 ptsQues!on 26 The accre"on of planetesimals forms phytoplanets. True False Correct! 1 / 1 ptsQues!on 27 What general statement holds in rela"on to the rela"ve density of the planets in the solar system? Star"ng with Mercury, each subsequent planet is denser. Star"ng with Mercury, each subsequent planet is less dense. The close planets are less dense than the far planets. The close planets are denser than the far planets. Correct! 0 / 1 ptsQues!on 28 What do geologists use to understand rela"ve "ming of geologic events when there are no con"nuous rock forma"ons to map? Angular unconformity. Fossil evidence. You Answered Wri!en records. Correct Answer All of the above. 1 / 1 ptsQues!on 29 Isotopic da"ng, which relies on radioac"ve decay, allows geologists to determine the age of rocks. This involves studying the half-life of radioac"ve elements. What is half- life? The "me required for half of the parent nuclides to donate half of their electrons to the daughter product. The "me required for the parent nuclides to lose half of their electrons. The "me required for half of the parent nuclides to decay to the daughter product. Correct! All of the above. 1 / 1 ptsQues!on 30 Chondrites are the same age as Earth. True Correct! False 1 / 1 ptsQues!on 31 Because meteorites formed in the same nebular cloud of dust and gas as the planets and have been preserved in space, their age is important in determining the age of the Earth and moon. True Correct! False 1 / 1 ptsQues!on 32 The isochron technique tells us that the chondri"c meteorites lie on a straight line in a plot showing the Sr/ Sr ra"o vs the Rb/ Sr ra"o. This means that the chondri"c meteors have the same … 87 86 87 86 Chemical composi"on. Size. Age. Correct! Density 1 / 1 ptsQues!on 33 Which of the following is not the name of a density transi"on within Earth’s interior? Mohorovicic Discon"nuity Gutenberg Discon"nuity Lehman Discon"nuity Greenall Discon"nuity Correct! 1 / 1 ptsQues!on 34 Lithophile elements prefer to reside in which layer of Earth? Oceanic crust. Con"nental crust. Mantle. Correct! Core. Submission Details: Time: 20 minutes Current Score: 34 out of 36 Kept Score: 34 out of 36 2 2020WA Home Announcements Syllabus Modules Assignments Quizzes Discussions Grades Contact DE Helpdesk 2 1 / 1 ptsQues!on 35 Solidus is the line that separates a solid from the first appearance of a liquid phase as temperature increases. True Correct! False 1 / 1 ptsQues!on 36 Geochemists use radiogenic isotopes of xenon, Xe to determine when Earth’s atmosphere and oceans were formed. By this method, how long a$er Earth’s forma"on did it take for the oceans and atmosphere to form? 129 A few thousand years. A few hundreds of thousands of years. A few million years. A few tens of millions of years. Correct! Quiz Score: 34 out of 36
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