which of the following is not true of sunspots

As the formation of sunspots approaches the Sun's equator, the polarity of the Sun flips. Which of the following is not one of the reasons for Earth's seasonality? A A rapidly rotating neutron star, producing beams of radio energy. 16. An ice storm breaks a transmission line and interrupts electric power to a town. Once a year c. Every 2 years d. Every 11 years e. Every 10,000 years 4. radiation but only line emissions, like a low density, 18. C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. Which of the following choices is not a way by which we can study the inside of the Sun? What do we mean when we say that the Sun is in gravitational equilibrium? A) Nuclear fusion in the Sun's core produces visible light photons. Which of the following statements about solar sunspots is NOT true? created the Intergovernmental Panel on Climate Change. Which of the following statements is NOT true about sunspots? 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 . B) The magnetic polarity of the Sun reverses approximately every 11 years. C) Newtons Sunspots are darker because they are cooler than the surround area. It was imaged by the SOHO Observatory. C Which of the following statements about neutrinos is not true? the regular movement of a relatively constant number of sunspots. A) by looking for the splitting of spectral lines in the Sun's spectrum The light radiated from the Sun's surface reaches Earth in about 8 minutes. The solar spectrum is a good example of what kind of spectrum? 1,000 km (621 mi) above the Earth's surface. Which of the following is TRUE? B thermonuclear fusion of hydrogen in the Sun's surface layers, *d. B) a slight gravitational contraction of the Sun D) No one knows: this is the essence of the "solar neutrino problem.". Which of the following statements about sunspots is false? a. They are C) It is rapidly converted to energy when it meets an ordinary electron, resulting in matter-antimatter annihilation. E) none of the above. C) The rate of nuclear fusion in the Sun peaks about every 11 years. C A. c) Determine how many gallons of water will need to be added to each truck. A elements toward the bottom of a group periodic table generally have higher ionization energies than elements at the top of a group. absolute magnitude (or intrinsic brightness) against temperature, 10. Course Hero is not sponsored or endorsed by any college or university. B. ionization energy is the amount of energy used to add an electron to an atom. A Question: Which of the following statements about spectral types of stars is not true? Reset Help deep-ocean trenches 1. A) They are too cold to emit any visible light. 1. When we say that the Sun is a ball of plasma, we mean that B) 25 million years 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. The sun emits radiant energy composed of, 11. AST 101: Midterm 2 Solutions they can produce flares and prominencesc. A) the strong force and the weak force is 13. d. If the distance between two objects is cut in half, what happens to the B) It is the primary energy generation mechanism in the Sun today. Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. Why? How is the length of a star's lifetime related to the mass of the, *a. Sunspots can also be the precursors to solar flares, which can be dangerous to satellites, astronauts, and electrical grids on Earth. white dwarf, neutron star, black hole, d. C) We do not know how to detect electron neutrinos. D none of the above Advertisement vblitesgkohrrssuovt B I think but not sure In the late 1800s, Kelvin and Helmholtz suggested that the Sun stayed hot due to gravitational contraction. E Sunspots can produce flares and prominences. B. Chlorine freed from CFCs only remain in the atmosphere for several days, on average. geog exam 1 Flashcards | Quizlet Two of the protons are converted into neutrinos. B) When a star contracts in size, gravitational potential energy is converted to thermal energy. 3) What do we mean when we say that the Sun is in gravitational equilibrium? D D. It decreases to 1/2 its original magnitude. absorbs visible light wavelengths. Sunspots appear darker than the surrounding area because the magnetic field reduces the temperature at the location of the sunspot. is not associated with transportation They are often seen as areas of reduced brightness or black spots on the surface of the Sun. luminosity against mass of a group of stars. In the center section near to the Sun's position, with lower mass, d. Choose Solar sunspots are temporary features on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions. Similarly if the solar core were to decrease in temperature, the nuclear fusion rate would plummet and gravity would overcome thermal pressure and contract the core. They are associated with intense magnetic activity, where the intense magnetic fields inhibit convection and suppress the formation of solar granules. What is the term for loops or sheets of glowing gas ejected from active regions on the solar surface? the monitoring of a distant object without physical contact. was ratified by the U.S. Congress in 1987. The helium produced from the fusion of hydrogen has less mass than the hydrogen that goes into its formation. The top of the Earth's atmosphere is approximately. E) The term solar neutrino problem refers to the fact that neutrinos are extremely difficult to detect. Only about 1/3 of the expected number of neutrinos is observed. Select the correct map type or mapping method for the above map. For the last few years we've been at what we call solar minimum. Most of the CFC-induced ozone destruction is occurring near the equator, rather than near the poles. 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 They can produce flares and coronal mass ejections. an irregular cycle averaging about 11 years, but sometimes, c. Physics: Sunspots and Solar Winds - Ducksters DOC www.ucolick.org Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. A *c. They occur in regions of lower-than-average magnetic fields. D) The Sun was born with a supply of neutrinos that it gradually emits into space. C) small variations in the rate of nuclear energy generation in the solar interior Another way that we can learn about the Sun is by capturing the particles in the solar wind that come from the Sun. However, some energy is released from the upper layers of the solar atmosphere. E. B) the strong wind that blows sunspots around on the surface of the Sun Write the Tollens' reagent chemical formula. Natural precipitation typically falls between pH 7.5 and 8.0. If they were hotter then they would be brighter since, by the blackbody law, Luminosity is proportional to Temperature 4. What is the primary source of energy for the Sun? Which of the following is not true of carbon dioxide? The training program for muscular endurance should not resemble the activity. It results from chemical reactions with chlorine derived from CFCs. which of the following is not true of sunspots? which of the following B) We did not know how to detect neutrinos. Which of the following statements about the sunspot cycle is not true They usually appear in groups in pairs, or in clusters called active regions, and can last anywhere from days to months. 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. A) the bubbling pattern on the photosphere produced by the underlying convection B) the Sun generates energy by nuclear fusion. primarily oxygen and several trace gases, such as carbon dioxide. The pressure from high-energy photons and neutrinos at the very, high A star with spectral type K is cooler than a star with spectral type G. While the quality of observations was good, consistent observation was lacking. D) only by using sophisticated computer models, because there are no observational ways of measuring magnetic field strength. Sunspots are really darker than the surrounding photosphere, and thus appear as black spots on the sun's surface. A) helioseismological fluctuations. Earth represents a vast integrated system. sunspot equilibria). B) Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. the larger the stellar mass, the larger the luminosity. (E). more sunspots indicate increased solar radiation. D) 11 years ago. five regions beginning with the outermost thermosphere. a. they can be several times larger than earthb. D) Sunspots are surface disturbances caused by magnetic storms. D) The core would heat up, fusion rates would increase, and the core would re-expand. This twisted and tangled magnetic field causes a concentration of magnetic flux near the surface of the Sun, which in turn reduces the temperature of the region and produces a darker area, resulting in a sunspot. The stars of the Milky Way then . They can have strong magnetic fields that create solar bursts that can cause solar storms on Earth. The Sun | Earth Sciences Quiz - Quizizz computer-based processing tool for analyzing geographic data. These . D) repel each other. Solved 35. Which of the following statements is not true? A. | Chegg.com The temperature of the Sun's photosphere is, 11. 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 32. occasionally x rays and visible light. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. The CFC molecules react with ultraviolet light to release carbon which then destroys ozone. 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. The poles have the smallest variation in summer and winter day lengths. B) The density of the core would decrease, causing the core to cool off and expand. prominences B) Earth's upper atmosphere tends to expand during solar maximum, exerting drag on satellites in low orbits. 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. D) They are tiny black holes, absorbing all light that hits them. C D) The Sun initially began generating energy through nuclear fusion as it formed, but today it generates energy primarily through the sunspot cycle. D) The chromosphere and corona are both best studied with radio telescopes. D D) a large change in the amount of visible light emitted by the Sun A geographic information system is a It has a ratio of turns N1/N2N_1 / N_2N1/N2 of 100 to 1. (C). Theories predict how many and what type of neutrinos should be observed. D) nuclear fusion of helium to carbon. C) chemical reactions. d. 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,. B) Solar neutrinos have been detected, but in fewer numbers than predicted by theoretical models. Which of the following is not true about solar flares - Course Hero C) collide. Magnetism is caused by attraction when two items are brought together or repulsion when two objects are moved apart. The sunspot cycle is very steady, so that each 11-year cycle is nearly identical to every other 11-year cycle. D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. Which of the following can be used to determine the temperature of a star? Based on its surface temperature of 5,800 K, what color are most of the photons that leave the Sun's surface? One important aspect of the study of binary star systems, as, distinct B. the oblate spheroidal shape of Earth E) a million years ago. E) Sunspots can produce flares and prominences. Which of the following best describes where other forms of light are released? Which of the following is TRUE? Scientists believe sunspots are associated with the Suns erratic magnetic cycle, which typically takes 11 years to complete. Main sequence, red giant, planetary nebula, white dwarf: Main sequence, planetary nebula, red giant, white dwarf. Which is the strongest of the fundamental forces in the universe? Convection, or the movement of gas or liquid caused by heat transfer, is not a cause of sunspots, but is instead impeded by the strong magnetic fields that cause sunspots. A luminosity is independent of the stellar mass. aims to reduce and eliminate all ozone depleting substances. D) Neutrinos rarely, if ever, interact with your computer. a measurement of the surface temperatures of stars. B) Fusion in the Sun's core creates neutrinos. Use , 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 C) chemical reactions has a charge of +2. is considered beneficial in trapping UV radiation. Nuclear power plants on Earth create energy in the same way as the Sun. Sunspots are often associated with large eruptions on the suns surface known as solar flares. E) the weak force. 3. They are distributed approximately uniformly over the Sun's surface both in position and in time. 3. Tree rings show the history of drought, fire, and other environmental variations. C) about a thousand trillion in the rarified space between galaxies. The fundamental nuclear reaction occurring in the core of the Sun is convective motion of gases in the upper portion of the Sun's, 24. At the center of the Sun, nuclear fusion converts hydrogen into a heavy, uncharged nuclear particle, easily detected. They are cooler because their strong magnetic fields suppress convection and prevent hotter material from flowing into them. 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. A) solar neutrinos C) 10,000 years 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? c. C) The radiation produced by fusion reactions that is trapped in the core gradually raises the temperature, increasing the rate of fusion. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. A) 5000 AD. Fusion of iron nuclei into heavier nuclei requires energy rather, than C) 1,000 K. As this question implies, safety precautions must be taken in the use of home generators and during power failures in general. C) No one understands how it can be possible for neutrinos to be produced in the Sun. Flashcards - AST1002 Exam 2 Review Which is closest to the temperature of the core of the Sun? The Sun Is Now More Active Than NASA Predicted. It Could Be In Its 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. Re-insert C) monitor changes in Earth's atmosphere. However, we detect far fewer than expected. Main sequence stars all have approximately the same mass, by, 25. Question 6 which of the following apply to quasars - Course Hero Hydrogen fusion in the Sun requires a temperature (in Kelvin) of. Sunspots are dark spots that appear on the surface of the sun and typically live for days to weeks. neutron star, black hole, white dwarf, 29. D) By measuring Doppler shifts, we observe vibrations of the Sun's surface that are created deep within the Sun. What is a small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the musculature of the right atrium, and that originates the impulses stimulating the heartbeat? E) green. Sunspot activity is often observed and studied to gain important data about the Suns atmosphere and the local magnetic environment of the Solar system. A) it is too dangerous to send the Space Shuttle to service satellites during solar maximum. You can do this by:. unevenly mixed gases that act independently. Radio waves from GPS are strengthened in the ionosphere. D) our mathematical models of the solar interior are fairly accurate. The interior of the Sun is under such high pressure that it is a, 31. A) the uppermost layer of the Sun, lying just above the corona C) chromosphere b. A) about one meter Every second, the Sun converts about 600 million tons of hydrogen into 596 million tons of helium. C) The Sun emits light of longer average wavelength. C The notion that ozone is being depleted as a result of human activity has little scientific evidence to support it. D) tunnels in the outer layers of the Sun through which photons can escape more quickly than through the radiation zone a gas shell, the atmosphere of a red giant star, slowly expanding. The reaction of automobile exhaust and ultraviolet light A) the electromagnetic force Solution. Lower-mass stars run through their lives faster and have shorter. These models make predictions about how bright and how big the Sun is, which we can then compare with observations. B Q. Astronomers observing spectral lines can observe red or blue shifts kn . C) The Sun generates energy through nuclear reactions while nuclear power plants generate energy through chemical reactions. 6. D) about 14 billion light years (the size of the observable universe) D) It quickly meets an ordinary electron, forming an electron-positron pair that remains stable. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. C) corona. After observing the Earth's weather patterns and the 11-year sunspot C. It decreases to 1/4 its original magnitude. B) They are all shaped by the solar wind. A elements toward the bottom of a group periodic table generally have higher ionization energies than elements at the top of a group. Which of the following processes is involved in the sunspot cycle? Which of the following best describes the current status of our understanding of the solar neutrino problem? A) They all have about the same temperature. 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. Which of the following is true with respect to the. For observers in the Northern Hemisphere, which of the following is true? It extends through the troposphere into the stratosphere. Hundreds of lakes are incapable of supporting life due to high acidity. C) electromagnetic force E) gradually expanding in size, How do human-built nuclear power plants on Earth generate energy? B) another name for the way sunspots look on the surface of the Sun a verification of the Doppler equation for wavelength shift of. Why, then, does it require four protons. B) Fission reactions in the Sun have ceased. D) The Sun becomes much brighter. D C) 8 minutes ago. 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. 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. additional When sunspots occur, dark spots form on the surface 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 Ozone in the lower troposphere A) hydrogen compounds. Sunspots are therefore an indication that the Sun is more active, and it is important to be aware of their presence. The Milky Way Galaxy contains over 300 million stars Our solar system consists of 8 planets, more than 100 moons, drawf planets, asteroids, and meteors The planetesimal hypothesis pertains to the formation of the planets. During periods of low solar activity just after solar minimum, what is true of the location and distribution of sunspots? E) because they are so small. *c. structure, origin, temperature. What is the solution to the solar neutrino problem? two zones that absorb radiation from the Sun. E) The mass of a neutrino is 30 percent of the mass of an electron. stratus cirrus altocumulus cumulus nimbostratus 27) Which of the following is false regarding air masses? Because of the electromagnetic force, the two protons will B) It predicted that the Sun would shrink noticeably as we watched it, and the Sun appears to be stable in size. The first step in the proton-proton chain produces an antielectron, or positron. INSTRUCTIONS:Fill Thus, the observations that confirm this prediction support the theory. Two helium nuclei are formed from the four protons. Follow the model. D) The Sun has exhausted its supply of neutrinos. 8. B) The Sun's mass is about 30 times the mass of Earth. 1. Sunspots have been continuously counted each day since 1838, which has allowed solar scientists to describe a repeating pattern in the wax and wane of activity on the Sun's surfacethe solar. a. A) The number of sunspots peaks approximately every 11 years. 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. B) The chromosphere is the source of infrared light, and the corona is the source of ultraviolet light. Once a month b. They change size b. If the Sun suddenly stopped emitting neutrinos, what might we infer (after checking that our neutrino detectors were still operational)? What is the velocity in the duct? 480 km (300 mi) above the Earth's surface. 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. sufficient to halt the collapse. D. the timing of Earth's perihelion and aphelion On a power pole down the block is a transformer designed to step down the voltage for household use. The circle of illumination passes through both poles. It primarily absorbs harmful infrared wavelengths. Sunspots are dark, cooler areas of the solar surface that appear darker when compared to the rest of the surface due to the intense magnetic fields surrounding them. How can we measure the strength of magnetic fields on the Sun? Geography quiz 2 Flashcards | Quizlet 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. B) gravitational contraction. C. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. Which part of the Hertzsprung-Russell diagram is occupied by, c. Because they are moving rapidly away from the Sun and their, spectra 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 "star" appears to become periodically dimmer for a few hours at, b. C) hotter and denser than the surface. Our Sun will end its life by becoming. correlated equilibria) and extrinsic uncertainty in market economies (e.g. a. C) extremely hot plasma flowing along magnetic field lines. in your Student ID# and the FORM NUMBER of your, exam B) The rate at which fusion occurs would increase, leading to an expansion of the core, which would in turn cause the temperature to drop back down. B) hydrogen compounds such as methane. Which of the following is TRUE? B) gravitational force and outward pressure an elusive, subatomic particle having little or no mass, and. the nebula caused by the supernova explosion of a massive star. E) magnetic fields lift material from the surface of the Sun, cooling off the material faster. A gases in the convective zone. What is the common cause of sunspots, flares, and prominences? 1) In the late 1800s, Kelvin and Helmholtz suggested that the Sun stayed hot thanks to gravitational contraction. Its. B) remain stationary. No lakes or streams have been damaged by acid precipitation. C c. Another idea was that the Sun shone through chemical burning (like a conventional fire on Earth), but this was dismissed because it could not generate and sustain sufficient brightness. nitrogen oxides and ozone D) the Coriolis force B ) B) a bubbling pattern on the photosphere. How is the energy difference equalized? d. Astronomers create mathematical models that use the laws of physics, the Sun's observed composition and mass, and computers to predict internal conditions. D) a few hundred thousand years ago. The specific type of fusion that occurs inside of the Sun is known as proton-proton fusion. Solved Which one of the following is NOT true? (A) The - Chegg 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. Sunspots increase the energy output of the Sun TRUE FALSE C. They can be larger in diameter than Earth. A Penn State professor explains how the northern lights put on a show B) millions of degrees. no larger than about 1.4 times the mass of the Sun, otherwise. a band running from upper right to lower left, 21. A) The chromosphere is best observed with infrared telescopes and the corona is best observed with ultraviolet telescopes. The pressure exerted by the atmosphere is not great enough to crush them. These heated the interior enough to allow gravitational contraction and nuclear fusion to occur. We also provide a link between extrinsic uncertainty arising in games (e.g. very young, because the G and K stars are still evolving towards, b. Which of the following regarding atmospheric pressure is true? , A new embankment, when completed will occupy a net volume of 257,000cy. From the center outward, which of the following lists the "layers" of the Sun in the correct order? The "star" appears to move in a straight line against a, a. C) They are holes in the solar surface through which we can see to deeper, darker layers of the Sun. C) Our understanding of fusion in the Sun suggested that neutrinos should be destroyed before they arrive at Earth, yet neutrinos were being detected. E) The rate of nuclear fusion in the Sun peaks about every 11 years. True False. Sunspots can appear in groups, or clusters, and their life-cycle can last from days to weeks to months. affects temperatures.

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