which of the following is not true of sunspots

d. Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. D) We can study solar neutrinos. *b. by theoretical models of the Sun. The highest temperatures in the atmosphere occur in the. Which of the following radioactive isotopes is used to date very recent events? A) ejected into space in a solar wind. Which of the following is not true of sunspots? The surface of the Sun is a very busy place. B) Neutrinos are created as a by-product of the proton-proton chain. The pressure from high-energy photons and neutrinos at the very, high Based on its surface temperature of 5,800 K, what color are most of the photons that leave the Sun's surface? A) We can probe the interior of the Sun by studying the vibrations in its photosphere. 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. no larger than about 1.4 times the mass of the Sun, otherwise. B Sunspots occur in pairs. They are associated with intense magnetic activity, where the intense magnetic fields inhibit convection and suppress the formation of solar granules. C) The radiation produced by fusion reactions that is trapped in the core gradually raises the temperature, increasing the rate of fusion. C) because they move at nearly the speed of light b. A) 3 H 1 Li + energy. D) constantly rising to the surface through convection. B) the Sun generates energy by nuclear fusion. Sunspots can have dramatic effects on the Earths space environment, including the generation of coronal mass ejections, solar flares, and other space weather phenomena. E) any temperature, as long as gravity is strong enough. A a somewhat irregular but always present cycle of build-up and, d. E) Energy is conserved so while the gas moves up and down, there is no net transport of energy. A) About a thousand trillion neutrinos are passing through your body every second. They usually appear in groups in pairs, or in clusters called active regions, and can last anywhere from days to months. The intricate patterns visible in an X-ray image of the Sun generally show The "star" appears to wiggle in its path across our sky against, *d. A) The number of sunspots peaks approximately every 11 years. young The Sun's average surface (photosphere) temperature is about E. They exert pressure outward, counterbalancing atmospheric pressure. E) The mass of a neutrino is 30 percent of the mass of an electron. The heating of the localized areas of the atmosphere of one star. D) The Sun always has the same amount of mass, creating the same gravitational force. B) millions of degrees. type of satellite used for monitoring the Earth's surface. What is shown by the small-scale changes in the shading in the figure above? B) variations in the temperature of the photosphere Which of the following correctly describes how the process of gravitational contraction can make a star hot? C. the orientation of Earth's axis 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. Which of the following correctly compares the Sun's energy generation process to the energy generation process in human-built nuclear power plants? Circle the correct indirect object pronoun to complete the sentence. E) gradually expanding in size, How do human-built nuclear power plants on Earth generate energy? D) Both have approximately the same mass. gases in the radiation zone. During a time interval of 1.5 s\mu ss in the rest frame of the muons, half of the muons present at the beginning of the interval decay. sulfur oxides and ozone A) they are regions where convection carries cooler material downward. Too few neutrinos are detected on Earth compared to the number the solar model predicts, The Language of Composition: Reading, Writing, Rhetoric, Lawrence Scanlon, Renee H. Shea, Robin Dissin Aufses. E Sunspots can produce flares and prominences. They are cooler than their This problem has been solved! 2. D) 4 million tons B) At solar minimum, the first sunspots form at mid-latitudes on the Sun. companion, B) radioactive decay. Sunspots are cooler areas on the suns surface that are relatively darker than the surrounding surface and are caused by intense concentration of magnetic fields. E) because they are so small. C) vibrations seen at the solar surface forms acid rain New resources and matter are being added to Earth's systems all the time. D Use the space below to solve this problem. D) a large change in the amount of visible light emitted by the Sun True False Question 24 (2 points) Which of the following is the correct order for the stages of evolution of a low-mass star, like the Sun? Ions and electrons are pushed apart by the electric forces, d. B) remain stationary. 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. A As magnetic activity increases, the sunspots form lower down and in greater numbers. During their rotation, the sunspots break up, regroup, and re-form in different configurations, as well as drift across the Suns surface. A dam is used to hold back a river. Select the correct map type or mapping method for the above map. 13. produces photochemical smog. A) blue Yes, sunspots are an indication of increased activity on the Suns surface. b) Determine how many trucks will be required to complete the job. D) Nothing; this is an artist's rendering of the sun. What is the velocity in the duct? Sunspots are cooler than the surrounding solar surface because It is intrinsically fainter than the Sun. D. Nowhere on Earth does day length vary by as much as 24 hours. Sunspots are temporary dark spots that appear on the surface of the Sun. It increases to 4 times its original magnitude. Greenhouse gases are by far the largest contributor to modern global warming. D) the Sun is roughly the same color as blood. 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? true or false: sunspots appear dark because they are hotter than the surrounding gas of the photosphere. Curious about the Sun, Galileo used his telescope to learn more. List at least two ways the sunspot cycle affects us on Earth. one continuous zone that functions as a whole. sunspots, This is because large magnetic fields are concentrated in these areas, inhibiting convection and cooling the surface. B) photosphere. It extends through the troposphere into the stratosphere. E) all of the above. Granulation is evidence of what phenomenon? Course Hero is not sponsored or endorsed by any college or university. sulfur oxides and nitrogen oxides E) It joins with a nearby neutron to form a proton. B B) a slight gravitational contraction of the Sun Why do sunspots appear dark? 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. A. indication of what physical process at work in the Sun? away C) sun spots A) They are too cold to emit any visible light. D) trillions of degrees. At the center of the Sun, nuclear fusion converts hydrogen into Although the speed of rotation varies from spot to spot, some spots may take as little as 14 days to make a complete rotation, while others can take up to several years. D) The chromosphere and corona are both best studied with radio telescopes. 38) Which of the following statements about the sunspot cycle is not true? 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? They increase and decrease in number, relatively regularly. Which of the following statements about solar sunspots is NOT true? C) 4 H 4 He + energy. B) the Sun is made of atoms and molecules. Again, this showed that not everything in the heavens revolved around the Earth. C) extremely hot plasma flowing along magnetic field lines. Suppose that, for some unknown reason, the core of the Sun suddenly became hotter. Why? C. The depletion is restricted to the arctic and antarctic regions. d. Line spectra C. Light from sunspots D. The star's magnetic field Which of the following best explains why nuclear fusion requires bringing nuclei extremely close together? This expansion cools the core back to its normal operating temperature. Sunspots can appear in pairs or in groups and usually have diameters that are from 4,000 km to 50,000 km in size. They are likely carved out by turbidity currents, which occur when sediment-laden water rapidly moves down slope. a mixture of gases that behaves like single gas. Earth's curvature, which presents varied angles to parallel solar rays. One important aspect of the study of binary star systems, as, distinct (a) Dete produces the auroras. 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. less mass than the four hydrogen atoms, because the energy, produced a. What was the major drawback to this idea? And at minimum you have a minimum number of sunspots, and at maximum, a maximum. D) The Sun initially began generating energy through nuclear fusion as it formed, but today it generates energy primarily through the sunspot cycle. The light radiated from the Sun's surface reaches Earth in about 8 minutes. 4. which of the folloing statements about ionization energy is true? 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. B) about 700,000 kilometers (the radius of the Sun) ________ refers to changes in daylength and the Sun's altitude over the course of the year. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. These spots are the result of two traits of the sun: its strong magnetic field, and its violent convective motion. a band running from upper left to lower right, d. This will cause its position in the, Hertzsprung-Russell the poles to the equator of the Sun over an 11-year period. 1). in nebulae composed of gas and dust. E) they are caused by processes similar to those that create earthquakes, Imagine that you are trying to stop neutrinos with a lead shield. how (or if) their lifetimes depend on mass. What is the surface temperature of the Sun? Why? C) areas of the corona where magnetic field lines project out into space, allowing charged particles to escape and form the solar wind A) More sunspots indicate increased solar radiation. D) gravitational contraction The number of sunspots has been historically linked to the 11-year sunspot cycle, where sunspots peak in intensity approximately every 11 years. C) 8 minutes ago. hotter. they D) tunnels in the outer layers of the Sun through which photons can escape more quickly than through the radiation zone of energy generation within its core in which gravitational, collapse A) send probes to measure the temperature. A) helium, gamma rays, and neutrinos. B. E) green. B 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. C) The churning is an illusion created by varying radiation, as the gas on the Sun's surface is actually quite still. Why must the Sun's rate of fusion gradually rise over billions of years? C) They are regions nearly devoid of gas. c. The reaction of automobile exhaust and ultraviolet light D) about 14 billion light years (the size of the observable universe) Sunspots may also be caused by changes in the Suns rotation, which can cause its poles to move, creating changes in the magnetic field and sunspot activity. Question 4 options: They are holes where we can see into the the interior of the Sun. A) The Sun's mass is about 300 times the mass of Earth. D Show explanation. Which of the following statements is not true about the planets so far discovered around other stars? A. Blackbody spectrum B. method of calculating distance on a map. Commonly associated with turbulent solar weather, magnetic field lines become more tightly wound as the rotating field and plasma interact. Sunspots are dark spots that appear on the surface of the sun and typically live for days to weeks. affects temperatures. Iron nuclei are so large that they occupy all remaining space and, 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? ________ is used in a barometer because ________. sunspots are surface disturbances caused by magnetic storms. E) helium, energy, and neutrinos. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. *b. C E) none of the above. Sometimes the Sun's surface displays virtually no sunspots, while at other times its surface displays a relatively large number of sunspots. A) There's no such thing as a solar neutrino. D No lakes or streams have been damaged by acid precipitation. 15. . B) They are holes in the solar surface through which we can see through to deeper, darker layers of the Sun. B) solar flares The CFC molecules react with ultraviolet light to release carbon which then destroys ozone. Sunspots are typically more common in higher latitudes of the Sun and will appear as dark, round patches. A) building mathematical models that use the laws of physics 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. 12. They gradually shrink to the size of the Earth. A magnet is an item with magnetic qualities. A) tunnels in the outer layers of the Sun that allow photons to escape and form the solar wind the parallel that is the farthest northern location for the subsolar point during the year. D) It is important during periods when the Sun is going from solar maximum to solar minimum. The Sun was once postulated to be a cooling ember, but that would have meant the Sun would have been much hotter in its immediate past (just a few hundred years ago) and people could not have lived in such a hot environment. D E) The number of solar flares peaks about every 11 years. in the rarified space between galaxies. C) The Sun emits light of longer average wavelength. They often occur in pairs of opposite magnetic polarity. a. What is the common cause of sunspots, flares, and prominences? E) Nothing: mass is conserved. B an earthbound technique not used in modern satellites. B) p + p becomes 2H + energy. 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 Energy from the core of the Sun first travels slowly through the convection zone and then much faster through the radiation zone. Which of the following best describes what would happen? If the Sun's core suddenly shrank a little bit, what would happen in the Sun? The main cause of sunspots is the suns magnetic field. Most. A) the Sun vibrates only on the surface. to overcome the collapse and stabilize the stellar, d. Thus, the north magnetic pole becomes the south magnetic pole and vice versa. B As such, they are transient and not permanent. of indeterminate age, since one cannot estimate the age of the, d. is lost from the atom, and energy is equivalent to mass, c. A More sunspots indicate increased solar radiation. a measurement of the surface temperatures of stars. d. B) 3 He 1 C + energy. They can spawn eruptive disturbances such as solar flares and coronal mass ejections (CMEs). B) When a star contracts in size, gravitational potential energy is converted to thermal energy. D. It results from the burning of fossil fuels. D) The magnetic polarity of the Sun reverses approximately every 11 years. a verification of the Doppler equation for wavelength shift of. *a. E) The sunspot cycle is the cause of global warming. Which of the following is true regarding the depletion of ozone in the ozonosphere? Together, these two factors lead to sunspots appearing darker than the rest of the Sun. The gravitational disturbance of one star's motion by its. established a framework to address acid precipitation. C. It decreases to 1/4 its original magnitude. D The longest day of the year occurs on the December solstice. If one fourth of the original muons reach Earth before decaying, about how big is the height h? 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. is ineffective because so few countries have ratified it. *b. B) nuclear fusion D) join together to form a deuterium nucleus. E. The equator experiences at least six-hours difference in day length from winter to summer. D) We see many sunspots on the surface of the Sun. D) the winding of magnetic field lines due to differential rotation C) The rate at which fusion occurs would decrease, leading to a contraction of the core, which would in turn cause a further temperature rise. ~ Very strong energy source production ofjets formed in isolated areas varies on extremely long timescales strong radio source 1/ point 1/ point 1/ point. B) Nuclei are attracted to each other by the electromagnetic force, but this force is only strong enough to make nuclei stick when they are very close together. You can specify conditions of storing and accessing cookies in your browser. a. D) Neutrinos rarely, if ever, interact with your computer. B. Sunspot occurrence has a regular cycle, with an average of 11 years between maximums. It consists of gamma ray, X-ray, ultraviolet, visible, and infrared wavelengths. B) the linkage of numerous protons into long chains. 28. B Describe a Laura y a Elin usando los verbos recprocos. 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. D) reabsorbed as molecular hydrogen. Multiple Choice Which of the following is NOT true about Sunspots? B) Both processes involve nuclear fusion, but the Sun fuses hydrogen while nuclear power plants fuse uranium. B) Sunspots are brighter than the rest of the Sun's surface.C) Sunspots can be up to 12 times larger than Earth. B) The visible light comes from energy level transitions as electrons in the Sun's hydrogen atoms jump between level 1 and level 2. A) the specific set of nuclear reactions through which the Sun fuses hydrogen into helium. D. They are surface disturbances caused by magnetic storms. Not only is Earth suddenly spinning faste r, but our Sun is getting more active than NASA predicted. 34%. They are regions of reduced surface temperature, caused by concentrations of magnetic field flux that inhibit convection. causes lung irritation, asthma, and susceptibility to respiratory illness in humans. A star with spectral type K is cooler than a star with spectral type G. Briefly describe what you will see as you descend. C) 5 billion years. A) an imbalance in the operation of the solar thermostat View full document. E) The term solar neutrino problem refers to the fact that neutrinos are extremely difficult to detect. method of collecting geologic data. E) The rate of nuclear fusion in the Sun peaks about every 11 years. Based on function, the atmosphere has Thermonuclear fusion reactions in the core of the Sun convert four, hydrogen created the Intergovernmental Panel on Climate Change. A) The number of sunspots peaks approximately every 11 years. b. B) Earth's upper atmosphere tends to expand during solar maximum, exerting drag on satellites in low orbits. E. All radio signals pass through this region virtually unaffected. convective motion of gases in the upper portion of the Sun's, 24. This reduces the energy reaching the surface, and the spots appear much cooler and darker than their surroundings. Experts are tested by Chegg as specialists in their subject area. By what process do nuclear power plants on the Earth generate energy? All latitudes on Earth, except the Equator, experience unequal daylengths.

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