D) Nothing; this is an artist's rendering of the sun. C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward. they Why are humans and other living things not crushed by the pressure of the atmosphere? C) a hundred years ago. C. the orientation of Earth's axis correlated equilibria) and extrinsic uncertainty in market economies (e.g. 3. The sun has an 11-year cycle of sunspots on its surface. It is based on the surviving letters of Galileo Galilei's daughter, the nun Suor Maria Celeste, and explores the relationship between Galileo and his daughter.It was nominated for the 2000 Pulitzer Prize for Biography or Autobiography. on the answer sheet. in the reaction, and the energy adds mass by E = mc2. Sunspots are dark patches on the surface of the Sun that vary from a few hundred kilometers to tens of thousands of kilometers in diameter. B) nuclear fusion Two helium nuclei are formed from the four protons. 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. B) at the same temperature but denser than the surface. Hint 1. B) Sunspots are brighter than the rest of the Sun's surface.C) Sunspots can be up to 12 times larger than Earth. When we say that the Sun is a ball of plasma, we mean that Why do sunspots appear dark in pictures of the Sun? A) photosphere in correct order of increasing temperature? A) about 1023 The movement of electric charges causes magnetism. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. E) the winding of magnetic field lines due to the Sun's rotation, What observations characterize solar maximum? A) We have X-ray images from satellites of the interior of the Sun. (PDF) Robustness of sunspot equilibria - Academia.edu The distance between corresponding points on any two successive waves is known as the. D. Nowhere on Earth does day length vary by as much as 24 hours. A protostar of about 1 solar mass is gradually contracting and, becoming Natural precipitation typically falls between pH 7.5 and 8.0. A) the bubbling pattern on the photosphere produced by the underlying convection D) 600 million tons an extremely regular build-up and decay of the number of. The Sun Is Now More Active Than NASA Predicted. It Could Be In Its (It's even "on sale"!) While the early part of the sunspot record before 1800 is still characterized by large uncertainties due to poorly observed periods, the more recent sunspot numbers are mainly affected by three . What is the Sun made of (by mass)? Very hot material orbiting a black hole. Solved True or false: The amount of solar activity (like - Chegg A Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. B) "sunquakes" are caused by similar processes that create earthquakes on Earth. Physics: Sunspots and Solar Winds - Ducksters C) The Sun's mass is about 300,000 times the mass of Earth. C) Energy is transported outward by the rising of hot plasma and the sinking of cooler plasma. B) radioactive decay. which of the following is not true of sunspots? which of the following D) They all occur only in the Sun's photosphere. The cycle then repeats for another 11 years with the magnetic poles of the Sun flipped. A) It slowly works its way to the Sun's surface, where it escapes into space. If the surface temperature of white dwarf stars is four times that, of A) Fusion gradually decreases the number of independent particles in the core, allowing gravity to compress and heat the core, which in turn increases the fusion rate and the Sun's luminosity. 4. Detailed calculations show th at the value of, for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+, respectively. Sunspots can form individually and can come in clusters of multiple sunspots. B) The chromosphere is the source of infrared light, and the corona is the source of ultraviolet light. What would happen to the core of the sun if its temperature rose slightly? A mi padre y a m (nos-te) importan los actores de Hollywood. E) radiation zone. *d. 10. 1. C) corona. Why are neutrinos so difficult to detect? The people living at 40 N or S experience about six-hours difference in daylength from winter to summer. The Sun's surface, as we see it with our eyes, is called the Solution. For the last few years we've been at what we call solar minimum. C D) a few hundred thousand years ago. A More sunspots indicate increased solar radiation. Sunspots are dark spots that appear on the surface of the sun and typically live for days to weeks. The intricate patterns visible in an X-ray image of the Sun generally show A) the strong force and the weak force 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. "Recent" events are those that date back tens of thousands of years. All latitudes on Earth, except the Equator, experience unequal daylengths. the Sun and energy output per unit area of a star depends on the, 4th E. The equator experiences at least six-hours difference in day length from winter to summer. no larger than about 1.4 times the mass of the Sun, otherwise. These spots are the result of two traits of the sun: its strong magnetic field, and its violent convective motion. What is the velocity in the duct? D B A) core, radiation zone, convection zone, corona, chromosphere, photosphere Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. A) the uppermost layer of the Sun, lying just above the corona D While the quality of observations was good, consistent observation was lacking. E) It joins with a nearby neutron to form a proton. Key to Exam 3 - Form 1 You can specify conditions of storing and accessing cookies in your browser. 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. How nuclear fusion turns hydrogen to helium b. The light radiated from the Sun's surface reaches Earth in about 8 minutes. 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. We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. B A) send probes to measure the temperature. absolute magnitude (or intrinsic brightness) against temperature, 10. From which region of the Sun does the solar wind originate? finally d. created the Intergovernmental Panel on Climate Change. type of satellite used for monitoring the Earth's surface. The relationship between mass and luminosity of stars on the main. The fundamental nuclear reaction occurring in the core of the Sun is E. Atmospheric pressure is greatest in the mesosphere. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. A C) It predicted that the Sun could shine for about 25 million years, but geologists had already found that Earth is much older than this. E. More solar energy is radiated when sunspots are fewer. Every material is composed of microscopic components known as atoms. B PDF ASTR1102-002 Practice Questions for Exam #2 A) variations in the height of the solar surface D) trillions of degrees. An air mass initially reflects the, As the Earth is a much cooler body than the sun, the Earth emits: A. ultraviolet radiation B. short-wave infrared radiation C. long-wave radiation D. visible light radiation, Select the correct map type or mapping method for the above map? A) one year ago. The dark spots are caused by regions of intense magnetic field, which are up to 2,500 times greater than the field of the earth. As magnetic activity increases, the sunspots form lower down and in greater numbers. B) repel one another. Along the way, changes in the Sun's magnetism produce a greater number of sunspots, more energy and cause solar eruptions of particles. D) convection zone how (or if) their lifetimes depend on mass. C How do we know what is going on in the center of the Sun so well if we cannot see it or send spacecraft to it? D) The number of sunspots on the Sun at any one time gradually rises and falls, with an average of 11 years between the times when sunspots are most numerous. How gravity behaves at the densest part of the Sun c. Why the outer layers of the Sun are hotter than the surface d. Why sunspots often appear and disappear in pairs e. Why solar activity seems to follow a cycle E) Sunspots can produce flares and prominences. Which of the following types of stars or stellar remnants can have a, mass After observing the Earth's weather patterns and the 11-year sunspot A) More sunspots indicate increased solar radiation. sunspots can be up to 12 times larger than earth. The ozonosphere is critical to life because it? Which of the following best describes air pollution? Sunspots can appear in both the northern and southern hemispheres of the Sun, and usually occur in pairs of opposite magnetic polarity. A computer accessory salesman attempts to convince you to purchase a "solar neutrino" shield for your new computer. *a. E) because they are so small. D) the Coriolis force Which of the following statements about sunspots is NOT true? They often occur in pairs of opposite magnetic polarity. apparent brightness against distance for stars near to the Sun. Glacial moraines show when and where previous episodes of glaciation occurred. Space weather: What is it and how is it predicted? | Space known During their rotation, the sunspots break up, regroup, and re-form in different configurations, as well as drift across the Suns surface. E) The Sun is generating energy other than by nuclear fusion. by theoretical models of the Sun. A repairman climbs the pole. What is the typical length of time between sunspot minimums and sunspot maximum; that is, what is the typical length of the "sunspot cycle"? was ratified by the U.S. Congress in 1987. It primarily absorbs harmful infrared wavelengths. No, sunspots are not caused by convection. Solved Which one of the following is NOT true? (A) The - Chegg A Abe Mizrahi, Edward E. Prather, Gina Brissenden, Jeff P. Adams, Jeffrey O. Bennett, Mark Voit, Megan O. Donahue, Nicholas O. Schneider, Foundations of Astronomy plus The Night Sky Planisphere - Latitude 30- 40, Chapter 14 Fire Detection and Alarm Systems,. A) the Sun vibrates only on the surface. A) 4 billion years C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. D. the timing of Earth's perihelion and aphelion (D). Another way that we can learn about the Sun is by capturing the particles in the solar wind that come from the Sun. How thick would you need to make this shield to ensure that it can stop a neutrino? The poles have the smallest variation in summer and winter day lengths. A distinct class of gases, particles, and other substances that the EPA has deemed worthy of regulating. Why? All radio signals pass through this region virtually unaffected. B) strong magnetic fields slow convection and prevent hot plasma from entering the region. B. E) 4 H 1 He + energy. Sunspots can appear in pairs or in groups and usually have diameters that are from 4,000 km to 50,000 km in size. Which of the following is true regarding acid deposition? the luminosity of stars reaches a peak at around 1 solar mass. A) the specific set of nuclear reactions through which the Sun fuses hydrogen into helium. However, as geologists and paleontologists found evidence for an ancient Earth, astronomers realized that gravitational collapse could not be the dominant energy source of our Sun today. A) Gravitational contraction involves nuclear fusion, which generates a lot of heat. Hundreds of lakes are incapable of supporting life due to high acidity. Space scientists study these to see how they perturb Earth's magnetic fields and affect satellites circling around Earth, but . How does the Sun's mass compare to Earth's mass? the greater the stellar mass, the less the luminosity. A) Energy is produced in the convection zone by thermal radiation. We can measure the luminosity that the Sun is producing and therefore determine how much fusion must be going on in its core. Which of the following statements is NOT true for sunspots? A) 4 tons which of the folloing statements about ionization energy is true? B) The Sun is generating much less energy than we think it is. Together, these two factors lead to sunspots appearing darker than the rest of the Sun. 13. Which of the following regarding atmospheric pressure is true? C) the Sun consists of gas in which many or most of the atoms are ionized (missing electrons). B) Solar neutrinos have been detected, but in fewer numbers than predicted by theoretical models. which of the following is not true of sunspots? 1.A. *c. Sunspots. Which Of The Following Is A True Statement. the regular movement of a relatively constant number of sunspots. additional TrueFalse. They are hotter than the surrounding photosphere. D) the winding of magnetic field lines due to differential rotation 10. Again, this showed that not everything in the heavens revolved around the Earth. They occur in regions of lower-than-average magnetic fields. C) The Sun's core gradually expands with time, and this expansion means there is more room for energy to be generated and hence increases the Sun's luminosity. aims to reduce and eliminate all ozone depleting substances. C) of increased magnetic interference. A) It predicted that the Sun would shrink noticeably as we watched it, but the Sun appears to be stable in size. D) 6 H 1 He + energy. For example, by detecting solar neutrinos we can learn more about the fusion that is going on within the Sun's core. A) Fusion reactions in the Sun ceased a few hundred thousand years ago. D) By measuring Doppler shifts, we observe vibrations of the Sun's surface that are created deep within the Sun. E) all of the above. C) one thousand years ago. is itchy, painful, red, or bleeding is unusual in color Preventing sunspots You may be able to prevent sunspots on your face by limiting your exposure to UVA and UVB rays. B. Chlorine freed from CFCs only remain in the atmosphere for several days, on average. B 28. The Sun | Earth Sciences Quiz - Quizizz B B) Both processes involve nuclear fusion, but the Sun fuses hydrogen while nuclear power plants fuse uranium. Show explanation. neutron star, black hole, white dwarf, 29. decreases as mass increases and decreases beyond this limit. This reduces the energy reaching the surface, and the spots appear much cooler and darker than their surroundings. the parallel that is the farthest northern location for the subsolar point during the year. is not associated with transportation Earth represents a vast integrated system. D) 37,000 K. What is the solar wind? Which of the following is NOT true about the differences between vector data model and raster data model?. The ESSAY. E) The sunspot cycle is the cause of global warming. What Is The Charge Carried By Each Sphere? - QuestionsAndAnswers A homeowner starts a gasoline-powered 120V120-\mathrm{V}120V generator and clips its output terminals to "hot" and "ground" terminals of the electrical panel for his house. C) We do not know how to detect electron neutrinos. will collapse under their own gravity? ~ Very strong energy source production ofjets formed in isolated areas varies on extremely long timescales strong radio source 1/ point 1/ point 1/ point. No, sunspots do not make the Earth hotter. b) Determine how many trucks will be required to complete the job. As it contracted, its gravitational potential energy was converted to thermal energy. a disk-shaped nebula of dust and gas rotating around a relatively. Sunspots are temporary dark spots that appear on the surface of the Sun. D) It is important during periods when the Sun is going from solar maximum to solar minimum. Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. occasionally x rays and visible light. Which of the following is true of the ionosphere? d. The middle of the solar cycle is the solar maximum, or when the Sun has the most sunspots. The top of the Earth's atmosphere is approximately. E Sunspots can produce flares and prominences. From the center outward, which of the following lists the "layers" of the Sun in the correct order? After observing the Earth's weather patterns and the 11-year sunspot cycle of the Sun for 36 years, scientists have found that high levels of sunspot activity precede shifts in wind patterns that affect the Earth's weather. Galileo's Daughter - Wikipedia 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? The Sun has sufficient hydrogen to continue fusing into helium for how much longer? Which of the following is true regarding day length? What problem have observers of solar neutrinos run into? The sunspot cycle is very steady, so that each 11-year cycle is nearly identical to every other 11-year cycle. hotter. A) The Sun becomes much brighter. The top of the Earth's atmosphere is approximately A) 5000 AD. affects temperatures. E) The term solar neutrino problem refers to the fact that neutrinos are extremely difficult to detect. It extends through the troposphere into the stratosphere. C) core, radiation zone, convection zone, photosphere, chromosphere, corona Solar radiation that is intercept by Earth is called. 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. 3. The CFC molecules react with ultraviolet light to release chlorine which then destroys ozone. D) neutrinos from the solar core reach the solar surface easily. 38) Which of the following statements about the sunspot cycle is not true? The core of the Sun is C) We have sent probes below the surface of the Sun. With his observations of the phases of Venus, Galileo was able to figure out that the planet orbits the Sun, not the Earth as was the common belief in his time. B) Higher temperature would cause the rate of nuclear fusion to rise, which would increase the internal pressure, causing the core to expand and cool until the fusion rate returned to normal. The Suns strong magnetic field gets twisted and tangled due to its convection, forming visible sunspot groups. Which is closest to the temperature of the Sun's core? a. Which of the following statements is NOT true about sunspots? It has a ratio of turns N1/N2N_1 / N_2N1/N2 of 100 to 1. Which of the following best describes the current status of our understanding of the solar neutrino problem? D) The Sun generates energy through fission while nuclear power plants generate energy through fusion. ch 16 Pearson Questions Flashcards | Quizlet Which is closest to the temperature of the core of the Sun? A) The number of sunspots peaks approximately every 11 years. B) a bubbling pattern on the photosphere. D) The Sun's gas is on fire like flames from wood or coal, and these flames emit visible light. FAQ: How Does the Solar Cycle Affect Earth's Climate? | NASA *c. They occur in regions of lower-than-average magnetic fields. two zones that absorb radiation from the Sun. The Sun will exhaust its nuclear fuel in about The Sun generates energy primarily by nuclear fission. c. Greenhouse gases are by far the largest contributor to modern global warming. The photosphere is relatively thin compared to the other atmospheric regions. The CFC molecules react with ultraviolet light to release fluorine which then destroys ozone. method of collecting geologic data. a. What two physical processes balance each other to create the condition known as gravitational equilibrium in stars? E) green. Select the correct map type or mapping method for the above map. If an electric hair dryer uses 2,400 J of" energy in 2 s, what is its power? B) Energy is produced in the convection zone by nuclear fusion. D) The planets need more and more energy to maintain any life on them as time goes on, and therefore the Sun must bet hotter. The Sun's core is an astonishing 29,000,000 degrees F., while the pressure is about 100 billion times the atmospheric pressure here on Earth. B. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. The "star" appears to wiggle in its path across our sky against, *d. A elements toward the bottom of a group periodic table generally have higher ionization energies than elements at the top of a group. One can conclude that meteorologists will be able to improve their weather forecasts based on this information. A. c. C) radiation and elements like carbon and nitrogen. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. Which of the following is NOT a correct statement about sunspots? 1). Course Hero is not sponsored or endorsed by any college or university. Yes, sunspots are an indication of increased activity on the Suns surface. D) The cycle is truly a cycle of magnetic activity, and variations in the number of sunspots are only one manifestation of the cycle. absorbs most ultraviolet wavelengths. Galileo turned his gaze toward Venus, the brightest celestial object in the sky - other than the Sun and the Moon. young D. It decreases to 1/2 its original magnitude. The helium atom has, a. d. D. The Northern Hemisphere spring officially begins. Sunspots have been observed by astronomers and recorded since the time of Galileo and they have been used to track solar activity. Almost all elements heavier than hydrogen and helium were made inside stars. What is the solution to the solar neutrino problem? The interior of the Sun is under such high pressure that it is a, 31. method of calculating distance on a map. C) electromagnetic force D) 90% dark matter, 10% ordinary matter, From center outward, which of the following lists the "layers" of the Sun in the correct order? One way to track the solar cycle is by counting the number of sunspots. The cesium iodide (CsI) molecule has an atomic separation of 0.127 nm. When is/was gravitational contraction an important energy generation mechanism for the Sun? B with a precise period of 11.3 years. The "star" appears to move in a straight line against a, a. E) attract one another. Question 6 which of the following apply to quasars - Course Hero Which of the following is not a characteristic of the 11-year sunspot cycle? As the core contracts, it heats up and the core returns to its normal operating temperature. C) because they move at nearly the speed of light Furthermore, the magnetic fields associated with sunspots have the ability to absorb light, providing the dark spots with an even further reduction in contrast. A) Experimental evidence indicates that the problem is solved and the expected number of solar neutrinos are indeed being produced by the Sun. These models make predictions about how bright and how big the Sun is, which we can then compare with observations. Solely natural gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. MID-TERM #1 Chapters 1,2,3 Flashcards by Drew Holland | Brainscape of energy generation within its core in which gravitational, collapse They appear dark because they are cooler than other parts of the Sun's surface.
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