D E) join together to form a nucleus. geog exam 1 Flashcards | Quizlet the movement of sunspots on the sun's surface. Solved Which of the following statements about spectral - Chegg Sunspots are the phenomena that occur in the photosphere of the sun that looks like dark spot than the rest of the sun's surface. B) Nuclear reactions in the Sun become more efficient with time, so that each fusion reaction releases more energy when the Sun is old than when it is young; this in turn raises the Sun's luminosity. (a) Determine the energy of the second excited rotational state, with J = 2. Multiple Choice Which of the following is NOT true about Sunspots? The corona is even shaped differently, streaming more from the sides of the Sun instead of forming a more spherical shape around the Sun, as when the magnetic field is weaker. D) No one understood how it could be possible for neutrinos to be produced in the Sun. Air consists of? C) Energy is transported outward by the rising of hot plasma and the sinking of cooler plasma. Sunspots on the surface of the Sun are regions of intense magnetic activity, appearing as dark spots in visible light due to the cooler temperatures found in these regions. Which of the following statements about solar sunspots is not true E) It joins with a nearby neutron to form a proton. INSTRUCTIONS:Fill white dwarf, neutron star, black hole, d. Which of the following statements about sunspots is NOT true? C. potassiumhas a lower ionizationenergy than sodium D. The pressure exerted by the atmosphere is not great enough to crush them. b. The Sun is a relatively young star, near the beginning of its life. Recommended Amendments to the Comprehensive Plan, sort the following manganese compounds by whether the cation is manganese ii or manganese iii. the monitoring of a distant object without physical contact. C) Convection releases neutrinos, which random walk through the radiation zone. What is the common cause of sunspots, flares, and prominences? A) 600 million tons c. A) Nuclei normally repel because they are all positively charged and can be made to stick only when brought close enough for the strong force to take hold. they can produce flares and prominencesc. A Which of the following best describes the current status of our understanding of the solar neutrino problem? B) variations in the temperature of the photosphere What processes are involved in the sunspot cycle? neutron star, black hole, white dwarf, 29. b. C) 10,000 years A pulsating white dwarf star, fluctuating rapidly in brightness. B) the linkage of numerous protons into long chains. C) We have learned that the Sun's interior undergoes fusion at a lower rate than we had expected, and that is why we had observed fewer neutrinos than expected. A) three days ago. C) holes in the corona of the Sun that allow us to see the photosphere C) areas of the corona where magnetic field lines project out into space, allowing charged particles to escape and form the solar wind D) It quickly meets an ordinary electron, forming an electron-positron pair that remains stable. a mixture of gases that behaves like single gas. Why must the Sun's rate of fusion gradually rise over billions of years? D) 37,000 K. What is the solar wind? A) The chromosphere is best observed with infrared telescopes and the corona is best observed with ultraviolet telescopes. Inside the Sun, this process begins with protons (which is simply a lone hydrogen nucleus) and through a series of steps, these protons fuse together and are turned into helium.So all A,B,C are produced in nuclear fusion in the sun. ANSWER: Correct Chapter 11 Question 22 Part A Which of the following denotes the divisions of the geologic time scale in correct order of decreasing lengths of time . D) 4 million tons E) green. The helium atom has, a. (b) Find the frequency of the photon absorbed in the J = 1 to J = 2 transition. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. Which of the following is not true of sunspots a more Along the way, changes in the Sun's magnetism produce a greater number of sunspots, more energy and cause solar eruptions of particles. C) yellow ~ Very strong energy source production ofjets formed in isolated areas varies on extremely long timescales strong radio source 1/ point 1/ point 1/ point. Because they are moving rapidly away from the Sun and their, spectra During their rotation, the sunspots break up, regroup, and re-form in different configurations, as well as drift across the Suns surface. A) regions on the photosphere where magnetic lines poke through, creating the cooler areas of the sunspots (C). d. False. sequence Three criteria used for classification of the atmosphere are B) The likelihood of seeing solar prominences or solar flares is higher when sunspots are more common and lower when they are less common. D Space weather: What is it and how is it predicted? | Space Why is it important to understand the Sun in order to understand the Earth's radiation belts and space weather? in correct order of increasing temperature? Use the space below to solve this problem. It was imaged by the SOHO Observatory. A correlated equilibria to the market game is either a sunspot equilibrium or a non-sunspot equilibrium to the related securities games, but the converse is not true in general. b. The rate of fusion then determines how many neutrinos should be produced by the Sun, and theories estimate how many of these should be detected here on Earth. D) an alternative way of generating energy that is different from the fusion of hydrogen into helium. Sun - History of observation | Britannica B) It is physically impossible to generate heat simply by making a star shrink in size. D) Sunspots are surface disturbances caused by magnetic storms. During the cycle, the amount of activity in the sunspot region increases and decreases. 4). When is/was gravitational contraction an important energy generation mechanism for the Sun? Solar sunspots are temporary features on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions. D) Fusion can proceed only by the proton-proton chain, and therefore requires that protons come close enough together to be linked up into a chain. B) They are all shaped by the solar wind. which of the folloing statements about ionization energy is true? sunspot equilibria). based on the principle that surfaces must be physically handled and directly measured for study. View full document. Which of the following is TRUE? Additionally, according to the National Oceanic and Atmospheric Administration, the amount of energy that sunspots emit is so small that it is impossible to measure here on Earth. They gradually shrink to the size of the Earth. 31)Option - C is . Magnetic fields on the sun are produced by the sun's uneven rotation and. Thermonuclear fusion reactions in the core of the Sun convert four, hydrogen Which of the following best explains why the Sun's luminosity gradually rises over billions of years? C) The Earth's natural magnetic field already offers excellent protection against the onslaught of solar neutrinos. B. a contracting spherical cloud of gas surrounding a newly formed, *d. Imagine you are plunging into the Sun, starting from Earth. B. ionization energy is the amount of energy used to add an electron to an atom. How do we know what goes on under the surface of the Sun? Main sequence stars all have approximately the same mass, by, 25. B How does the Sun generate energy today? The diameter of a typical neutron star of 1 solar mass is predicted, 7. B) There are many sunspots visible on the surface of the Sun. D B) red B) areas of the corona where magnetic field lines project into space, allowing charged particles to escape the Sun, becoming part of the solar wind The top of the Earth's atmosphere is approximately The statement that is not true about solar sunspots is that they are permanent. Glacial moraines show when and where previous episodes of glaciation occurred. D) repel each other. Granulation or the mottled appearance of the whole solar surface is. As such, they are transient and not permanent. A. Sunspots are cooler than the surrounding region of the Sun's surface. B) The Sun emits light of longer average wavelength. A) 5000 AD. Not only is Earth suddenly spinning faste r, but our Sun is getting more active than NASA predicted. Why? , if we change an experiment so to decrease the uncertainty in the location of a particle along an axis, what happens to the uncertainty in the particle *b. an extremely regular build-up and decay of the number of. C C unevenly mixed gases that act independently. Another way that we can learn about the Sun is by capturing the particles in the solar wind that come from the Sun. D) We see many sunspots on the surface of the Sun. Earth represents a closed system in terms of matter. Which of the following radioactive isotopes is used to date very recent events? A magnet, for example, may attract another thing. A. the revolution of Earth around the Sun A protostar of about 1 solar mass is gradually contracting and, becoming B D) We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface. *c. 13. A high-mass star near the end of its life undergoes successive, cycles The ESSAY. D B) the strong wind that blows sunspots around on the surface of the Sun B) The chromosphere is the source of infrared light, and the corona is the source of ultraviolet light. is considered beneficial in trapping UV radiation. D A C) billions of degrees. Only about 1/3 of the expected number of neutrinos is observed. B) 4 million tons What is the average temperature of the surface of the Sun? Suppose you put two protons near each other. B) We can make a computer model of the Sun's interior that allow us to predict the observable properties of the Sun. A) about one meter 4) What two forces are balanced in what we call gravitational equilibrium? Sunspots also appear dark because they are composed primarily of dense, dark-colored photospheric and chromospheric material. C) 4 H 4 He + energy. A) The Sun is generating energy other than by nuclear fusion. b. Why? D) The rate at which fusion occurs would decrease, leading to an expansion of the core, which would in turn cause the temperature to drop back down. affects temperatures. A) hydrogen compounds. 33. Which of the following statements about sunspots is NOT true? E. It results from chemical reactions with chlorine derived from CFCs. D) dust particles in the Sun that haven't been turned into plasma B) We did not know how to detect neutrinos. Which of the following best describes air pollution? Question 6 which of the following apply to quasars - Course Hero two zones that absorb radiation from the Sun. B) ten years ago. The helium produced from the fusion of hydrogen has less mass than the hydrogen that goes into its formation. Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. Climate Literacy Quiz - Teaching Climate to force it to move in an orbit. A Photographs reveal that most of them have atmospheres much like that of Jupiter. Which of the following conclusions can be drawn about Enif from. C) No one understands how it can be possible for neutrinos to be produced in the Sun. C) our mathematical models of the solar interior are fairly accurate. A) several thousand years ago. C) The rate of nuclear fusion in the Sun peaks about every 11 years. A C) elements in the Sun other than hydrogen and helium a. A star's lifetime does not depend on its mass. compared c. C) The Sun initially began making energy through chemical reactions. E) all of the above. a gas shell, the atmosphere of a red giant star, slowly expanding. B D) convection zone Because of the electromagnetic force, the two protons will As the cycle ends, it . Jupiter's moons The planet Jupiter was accompanied by four tiny satellites which moved around it. Laboratory experiments and theory show that fusion produces neutrinos. sulfur oxides and ozone C) 50% hydrogen, 25% helium, 25% other elements 5) Which of the following statements about the sunspot cycle isnottrue? Why are neutrinos so difficult to detect? B) gravitational contraction. The first step was measuring the distance to the Sun which then allowed us to calculate how luminous it is and therefore how much energy is needed to power it. What Is The Charge Carried By Each Sphere? - QuestionsAndAnswers The Sun Is Now More Active Than NASA Predicted. It Could Be In Its B) Solar neutrinos are generated by solar winds, but we're in a solar minimum now, so the risk of damage is very low. What is the typical length of time between sunspot minimums and sunspot maximum; that is, what is the typical length of the "sunspot cycle"? B B ) C) nuclear fission At the center of the Sun, nuclear fusion converts hydrogen into Which of the following is characterized by the longest wavelengths, 12. C Which of the following is NOT true about the differences between vector data model and, 26) Which of the following is a high-altitude cloud? And the cycle is 11 years, so in the next few years we'll be seeing more sunspots. As it contracted, its gravitational potential energy was converted to thermal energy. It increases to 2 times Question 4 options: They are holes where we can see into the the interior of the Sun. Question there were no dark energy, the expansion of the universe would be: constant accelerating decelerating . *b. B. ionization energy is the amount of energy used to add an electron to an atom. How is the sunspot cycle directly relevant to us here on Earth? However, the energy of this light was released by fusion in the Sun's core about Together, these two factors lead to sunspots appearing darker than the rest of the Sun. D) It predicted that Earth would also shrink in size with time, which would make it impossible to have stable geology on our planet. B Sunspots are cooler than the surrounding solar surface because Sunspots can also often be accompanied by intense dark patches of plasma that are suspended above the suns surface called prominences, which may disperse into space and can cause beautiful auroras if they are directed toward Earth. A) It predicted that the Sun would shrink noticeably as we watched it, but the Sun appears to be stable in size. Two of the protons are ejected back into the solar material. A) Energy is produced in the convection zone by thermal radiation. Which layer of the Sun do we normally see? Sunspots are more important to global warming than GHGs There is more methane in the atmosphere than carbon dioxide Arctic Greening will absorb most of the carbon we emit to the atmosphere Greenhouse gases are by far the largest contributor to modern global warming Volcanic explosions can cool Earth's climate for hundreds of years. It primarily absorbs harmful infrared wavelengths. B) 5 million years. D) The cycle is truly a cycle of magnetic activity, and variations in the number of sunspots are only one manifestation of the cycle. *b. the troposphere and the stratosphere. 5. This inhibition of convection causes the temperature of the sunspot to reduce, making it much cooler than its surroundings. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. Sunspots are concentrations of magnetic field in the photosphere of the Sun which appear as dark spots on the Suns surface. C. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. diagram to shift slowly, 20. D) Nothing; this is an artist's rendering of the sun. B) about 700,000 kilometers (the radius of the Sun) The light radiated from the Sun's surface reaches Earth in about 8 minutes, but the energy of that light was released by fusion in the solar core about an undetermined amount of mass, depending on the temperature at, 19. D) They are tiny black holes, absorbing all light that hits them. C D) They are thick clouds on the sun, blocking its light. What proportion of climate scientists has concluded that humans are the primary driver of today's climate warming? Which of the following is not true about sunspots? five regions beginning with the outermost thermosphere. Which of the following statements about sunspots is false? a. They are in your Student ID# and the FORM NUMBER of your, exam composition, origin, evolution. Over time, solar activityand the number of sunspotsincreases. As you plunge through the "surface" of the Sun, the photosphere, the temperature will be a slightly cooler 5,800 K, compared to the outer layers, and you will see the slightly cooler regions of sunspots and the granulation on the surface caused by the convection underneath. They often occur in pairs of opposite magnetic polarity. they are brighter than the rest of the sun's surfaced. A longer lived source that could match the energy requirements is gravitational contraction. They tend to cluster at high solar latitudes. Which of the following statements is not true about the planets so far discovered around other stars? apparent brightness against intrinsic brightness of a group of. D) core, corona, radiation zone, convection zone, photosphere, chromosphere, What are the appropriate units for the Sun's luminosity? d. All latitudes on Earth, except the Equator, experience unequal daylengths. A) one year ago. a heavy, uncharged nuclear particle, easily detected. Gravitational equilibrium means that the surface and the core of the Sun are at the same pressure. Sunspots are actively rotating regions that contain strong magnetic fields and are usually found in pairs. is on the last page, tear it free and turn it in separately. According to modern science, approximately how old is the Sun? D C) Energy slowly leaks outward through the radiative diffusion of photons that repeatedly bounce off ions and electrons. D) The Sun was born with a supply of neutrinos that it gradually emits into space. d. By what process do nuclear power plants on the Earth generate energy? C Choose Q. Astronomers observing spectral lines can observe red or blue shifts kn . B) The chromosphere is best observed with ultraviolet telescopes and the corona is best observed with X-ray telescopes. Which of the following is NOT true about the differences between vector data model and raster data model?. How can we best observe the Sun's chromosphere and corona? E) the interaction of the Earth's magnetic field with that of the Sun, What observations characterize solar maximum? C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. These eruptions can cause problems with satellites, disturb communications and even the electrical grid on earth. D) The core would heat up, fusion rates would increase, and the core would re-expand. Solved Which one of the following is NOT true? (A) The - Chegg A hot-air home heating system takes 500 ft3/min (cfm) air at 14.7 psia, 65 F into a furnace, heats it to 130 F, and delivers the flow to a square duct 0.5 ft by 0.5 ft at 15 psia. Most choices will fit grammatically and will even make sense logically, but you must choose the pair that best fits the idea of the sentence. AST 101: Midterm 2 Solutions The presence of sunspots can indicate storms on the sun, which can release bursts of solar energy called solar flares that can interfere with communication systems and cause harm to astronauts in space. A) tunnels in the outer layers of the Sun that allow photons to escape and form the solar wind Electrostatic forces between the highly charged iron nuclei are, sufficient primarily oxygen and several trace gases, such as carbon dioxide. D D The ozonosphere is critical to life because it? Solved Which of the following is TRUE? Sunspots are more | Chegg.com B) by observing the sizes of sunspots: Bigger sunspots mean a stronger field They often occur in pairs of opposite magnetic polarity. computer-based processing tool for analyzing geographic data. Which of the following is not true of sunspots? They are caused by intense magnetic fields that disrupt the flow of plasma, which is a superheated, electrically charged state of matter formed from the gases of the Sun. Yes, sunspots are an indication of increased activity on the Suns surface. B) the Sun generates energy by nuclear fusion. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. an elusive, subatomic particle having little or no mass, and. Determine the distance traveled a 32. the answer sheet into the test packet and turn both in. C. It decreases to 1/4 its original magnitude. is lost from the atom, and energy is equivalent to mass, c. These dark spots, or sunspots, appear in clusters of various sizes and have a temperature that is about 1500C cooler than the suns surrounding surface. They can have strong magnetic fields that create solar bursts that can cause solar storms on Earth. C) They are all strongly influenced by magnetic fields on the Sun. The specific type of fusion that occurs inside of the Sun is known as proton-proton fusion. It results from chemical reactions with chlorine derived from CFCs. It is the largest galaxy in the universe Which of the following is true? D Sunspots can also be the precursors to solar flares, which can be dangerous to satellites, astronauts, and electrical grids on Earth. Two helium nuclei are formed from the four protons. white dwarf, black hole, neutron star, b. Thus, the observations that confirm this prediction support the theory. The interior of the Sun is under such high pressure that it is a, 31. On its way to Earth, solar winds first encounter, The dominant wavelength emitted by Earth is. C) radiation and elements like carbon and nitrogen. Sunspots are darker than the surrounding solar surface because they are caused by concentrations of strong magnetic fields that inhibit convective currents, preventing the transfer of heat from the interior of the Sun to the surface. The embankment will be constructed in layers of 8 inch depth, loose measure then compacted to a dry unit weight of 114pcf at a moisture content of 18.3%. A) collide. Radio waves from GPS are strengthened in the ionosphere. The remaining 4 million tons of mass is Why does the Sun emit neutrinos? What happens to energy in the Sun's convection zone? D For observers in the Northern Hemisphere, which of the following is true? Sunspots tend to occur in cycles that last 11 years and the peak phase of this cycle is often referred to as the Solar Maximum. C. The subsolar point is at the Tropic of Cancer (23.5 N). A) nuclear fission. Most of the energy produced in the Sun is released in the form of visible light from the photosphere. B Melt from the subducting plate rises to the surface, erupts through the . D) The solar neutrino problem remains as perplexing as ever, and indeed makes everything we think we know about stars suspect. Expert Answer. C) 1,000 K. E. More solar energy is radiated when sunspots are fewer. C) one thousand years ago. then D) gravitational force We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. A) building mathematical models that use the laws of physics Sunspots have been observed by astronomers and recorded since the time of Galileo and they have been used to track solar activity. D) trillions of degrees. By measuring Doppler shifts of material on the Sun's surface, we observe vibrations of the surface that are created deep within the Sun. Suppose that, for some unknown reason, the core of the Sun suddenly became hotter. C) the strong force C) It has played a role throughout the Sun's history, but it was most important right after nuclear fusion began in the Sun's core. A distinct class of gases, particles, and other substances that the EPA has deemed worthy of regulating. C B) At solar minimum, the first sunspots form at mid-latitudes on the Sun. The solar spectrum is a good example of what kind of spectrum? How often is there an increase in sunspot activity? A) The Sun becomes less efficient and must increase the rate of fusion to produce the same amount of energy. Magnetism is a physical quality mediated by a magnetic field that refers to the ability to create attracted and repulsive occurrences in other substances. Tree rings show the history of drought, fire, and other environmental variations. impossible, because one cannot have cool stars above the main. E) The Sun does not emit neutrinos. D) Neutrinos have a tendency to pass through just about anything without interactions, making them very difficult to detect. Geography quiz 2 Flashcards | Quizlet from single stars, is that it provides, a. the movement of gases in the corona.
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