which of the following is not true of sunspots

apfelkuchen mit haferflocken ohne mehl | which of the following is not true of sunspots

which of the following is not true of sunspots

C) because they move at nearly the speed of light B) 3 He 1 C + energy. ________ is used in a barometer because ________. 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? E. Atmospheric pressure is greatest in the mesosphere. Which of the following is not true of sunspots? ~ 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) Fusion in the Sun's core creates neutrinos. 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 D) core. *c. It is the largest galaxy in the universe Which of the following is true? contains hot B-type stars on the main sequence and cooler G- and, K-type All radio signals pass through this region virtually unaffected. C ANS: The length of the sunspot cycle is 11 years. Use What do sunspots, solar prominences, and solar flares all have in common? C) The rate of nuclear fusion in the Sun peaks about every 11 years. GEOG 1112 - Chapter 3: (Questions)Earth's Atm, GEOG 1112k- Chapter 9: Climate Classification. A) The Sun generates energy by fusing small nuclei into larger ones, while our power plants generate energy by the fission (splitting) of large nuclei. Astronomers create mathematical models that use the laws of physics, the Sun's observed composition and mass, and computers to predict internal conditions. 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) More sunspots indicate increased solar radiation. B) It rapidly escapes from the Sun, traveling into space at nearly the speed of light. We can apply our knowledge of how gases behave at different temperatures and densities, which is testable in laboratory environments, to make a mathematical model of the Sun. C) Higher temperature would cause the rate of fusion to fall, decreasing the internal pressure and causing the core to collapse until the rate of fusion returned to normal. A) There's no such thing as a solar neutrino. an extremely regular build-up and decay of the number of. Muons are created by cosmic-ray collisions at an elevation h (as measured in Earth's frame of reference) above Earth's surface and travel downward with a constant speed of 0.990c. Where are the most massive stars to be found in the main sequence of, b. The diameter of a typical neutron star of 1 solar mass is predicted, 7. E) The sunspot cycle is the cause of global warming. A) It predicted that the Sun could last only about 25 million years, which is far less than the age of Earth. produces industrial smog. Circle the correct indirect object pronoun to complete the sentence. a. They occur in regions of lower-than-average magnetic fields. B) 5,800 K. Which of the following radioactive isotopes is used to date very recent events? The spectral type of a star can be used to determine its colour. Magnetic fields on the sun are produced by the sun's uneven rotation and. c. How long will the Sun have spent as a main sequence star when it. finally Which the following is not true of sunspots? A) The Sun is generating much less energy than we think it is. Hydrogen fusion in the Sun requires a temperature (in Kelvin) of. Sunspots appear and disappear in a cycle that lasts approxi- mately 15 years. 4) What two forces are balanced in what we call gravitational equilibrium? The cycle then repeats for another 11 years with the magnetic poles of the Sun flipped. This low density in turn causes the Suns energy to be absorbed unevenly, creating areas on the surface that are cooler than their surroundings. C) The hydrogen gas in the Sun is balanced so that it never rises upward or falls downward. One important aspect of the study of binary star systems, as, distinct D We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. Which of the following is true regarding the depletion of ozone in the ozonosphere? 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. C) We do not know how to detect electron neutrinos. C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. Greenhouse gases are by far the largest contributor to modern global warming. C) 5 billion years. A) the electromagnetic force A) the Sun vibrates only on the surface. B Thus, the north magnetic pole becomes the south magnetic pole and vice versa. A) blue structure, origin, evolution Instead he found that the number of sunspots varied with a . with a precise period of 11.3 years. B) Solar neutrinos have been detected, but in fewer numbers than predicted by theoretical models. d. They increase and decrease in number, relatively regularly. The middle of the solar cycle is the solar maximum, or when the Sun has the most sunspots. The "star" appears to move in a straight line against a, a. A) Early experiments designed to detect solar neutrinos found them, but in fewer numbers than had been expected. hotter. What is shown by the small-scale changes in the shading in the figure above? D) Sunspots are surface disturbances caused by magnetic storms. D E) green. E) both C and D, Studies of solar vibrations have revealed that correlated equilibria) and extrinsic uncertainty in market economies (e.g. The sun's photosphere is about 300 miles (500. 3. c. C) They have no mass. aims to reduce and eliminate all ozone depleting substances. B) The visible light comes from energy level transitions as electrons in the Sun's hydrogen atoms jump between level 1 and level 2. C) The Sun's entire magnetic field flip-flops at the end of each cycle (at solar minimum). At the center of the Sun, nuclear fusion converts hydrogen into Melt from the subducting plate rises to the surface, erupts through the . Ozone in the lower troposphere b. Magnetism is a physical quality mediated by a magnetic field that refers to the ability to create attracted and repulsive occurrences in other substances. Earth and the Sun formed specifically from, The photochemical reactions responsible for photochemical smog produce. *c. A These eruptions can cause problems with satellites, disturb communications and even the electrical grid on earth. Daylength is longest on the summer solstice and is shortest on the winter solstice. A) As the Sun was forming, nuclear fusion reactions in the shrinking clouds of gas slowly became stronger and stronger, until the Sun reached its current luminosity. A gas pressure to halt the collapse. Question: Which one of the following is NOT true? It primarily absorbs harmful infrared wavelengths. As such, they are transient and not permanent. A pulsating white dwarf star, fluctuating rapidly in brightness. B) They are holes in the solar surface through which we can see through to deeper, darker layers of the Sun. How do massive stars normally end their lives? D) 50 billion years. C) by observing auroras here on Earth While some sunspots do form with a partner, it is not always the case. decreases as mass increases and decreases beyond this limit. An astronomer plots the HR diagram of a star cluster and finds that, it the regular movement of a relatively constant number of sunspots. Sunspots can vary in size from just a few hundred to over 100,000 kilometers across. D) Neutrinos have a tendency to pass through just about anything without interactions, making them very difficult to detect. It increases to 4 times its original magnitude. mostly carbon dioxide and water vapor. The main cause of sunspots is the suns magnetic field. Why do sunspots appear dark in pictures of the Sun? (1gallon of water is 8.36 pounds), Question 5 of 20 They move across the Sun c. They are permanent d. They are caused by magnetic activity e. They vary in size 3. C) the Sun generates energy by nuclear fusion. The core of the Sun is a measurement of the surface temperatures of stars. B Sunspots can appear in pairs or in groups and usually have diameters that are from 4,000 km to 50,000 km in size. It occurs in large amounts in the atmosphere relative to other gases, such as nitrogen and oxygen. B) Both processes involve nuclear fusion, but the Sun fuses hydrogen while nuclear power plants fuse uranium. sufficient to halt the collapse. What is the velocity in the duct? . B B C) radiation and elements such as carbon and nitrogen. 1. Which of the following best describes the current status of our understanding of the solar neutrino problem? Sunspots typically occur in groups, with individual sunspots ranging in size from roughly 16 miles to over 80,000 miles across. What is the primary source of energy for the Sun? Experts are tested by Chegg as specialists in their subject area. C) No one understands how it can be possible for neutrinos to be produced in the Sun. A. Modelo A Mara (le-les) encantan las pelculas romnticas. D) core, corona, radiation zone, convection zone, photosphere, chromosphere, What are the appropriate units for the Sun's luminosity? A they are surface disturbances caused by magnetic storms A c. they are brighter than the rest of the sun's surface 10 Q B) about 700,000 kilometers (the radius of the Sun) Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. Why are neutrinos so difficult to detect? C 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. D) The Sun was born with a supply of neutrinos that it gradually emits into space. E. It results from chemical reactions with chlorine derived from CFCs. D) The Sun becomes much brighter. the poles to the equator of the Sun over an 11-year period. Multiple Choice Which of the following is NOT true about Sunspots? primarily oxygen and several trace gases, such as carbon dioxide. D. It results from the burning of fossil fuels. B) about one thousand Which is the strongest of the fundamental forces in the universe? The helium atom has, a. Save my name, email, and website in this browser for the next time I comment. Because they have very thin atmospheres that do not emit, continuum 2. D) about 14 billion light years (the size of the observable universe) the difference in amount of incoming shortwave and outgoing longwave radiation. D) No one understood how it could be possible for neutrinos to be produced in the Sun. five regions beginning with the outermost thermosphere. the answer sheet into the test packet and turn both in. A magnet is an item with magnetic qualities. an Its. E) any temperature, as long as gravity is strong enough. A) building mathematical models that use the laws of physics B) by observing the sizes of sunspots: Bigger sunspots mean a stronger field A 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. A rapidly rotating neutron star, producing beams of radio energy. . D) use computer models to predict interior conditions. What are coronal holes? D) No one knows: this is the essence of the "solar neutrino problem.". the nebula caused by the supernova explosion of a massive star. Sunspots are dark areas of intense magnetic activity that form on the surface of the Sun. One can conclude that meteorologists will be able to improve their weather forecasts based on this information. While the quality of observations was good, consistent observation was lacking. D) By measuring Doppler shifts, we observe vibrations of the Sun's surface that are created deep within the Sun. Q. composition, temperature, and function. A) 3 H 1 Li + energy. Fusion of iron nuclei into heavier nuclei requires energy rather, than D 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. Today, it far exceeds its natural range of 180 to 300 ppm. B) radioactive decay. *b. The borrow material that will be used to construct this fill is stiff clay. 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. causes lung irritation, asthma, and susceptibility to respiratory illness in humans. B. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. 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. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. a somewhat irregular but always present cycle of build-up and, d. A) the strong force and the weak force b. E) both B and D. Studies of sunquakes, or helioseismology, have revealed that 2.A 3.D 4.C 1.Is the following statement true or false?Solar panels collect energy from the sun that can then power a lamp in a home. A) 600 million tons Which of the following statements about sunspots is NOT true? E) radiation zone. 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) they are caused by processes similar to those that create earthquakes, Imagine that you are trying to stop neutrinos with a lead shield. D) 600 million tons to force it to move in an orbit. sunspots are brighter than the rest of the Sometimes the Sun's surface displays virtually no sunspots, while at other times its surface displays a relatively large number of sunspots. E) The number of solar flares peaks about every 11 years. Sunspots are concentrations of magnetic field in the photosphere of the Sun which appear as dark spots on the Suns surface. A magnet, for example, may attract another thing. The Montreal Protocol Oceanic crust spreads at mid-ocean ridges, creating new crust and slowly enlarging the ocean basin. your choice on the answer sheet. A) The number of sunspots peaks approximately every 11 years. If the solar core were to increase in temperature, the nuclear fusion rate would soar, generating excess energy that increases the pressure and pushes the core outwards. ozone and VOCs. 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? It was imaged by the SOHO Observatory. Electrostatic forces between the highly charged iron nuclei are, sufficient A A) Contracting objects cool down rather than heat up. B) Sunspots are brighter than the rest of the Sun's surface. Which of the following is true with respect to the. What was the major drawback to this idea? Almost all elements heavier than hydrogen and helium were made inside stars. luminosity against mass of a group of stars. A) The chromosphere is the source of ultraviolet light, and the corona is the source of X rays. 14. they are brighter than the rest of the sun's surfaced. A The solar thermostat is analogous to the thermostat at home: it works to maintain a constant temperature. What problem have observers of solar neutrinos run into? Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. A D) repel each other. *b. The circle of illumination passes through both poles. The Sun's surface, as we see it with our eyes, is called the A) remain stationary. What would happen to the core of the sun if its temperature rose slightly? A) the Sun vibrates only on the surface. d. a. View full document. is not associated with transportation The temperature of the Sun's photosphere is, 11. Under these conditions, hydrogen atoms come so close together that they fuse. (C). Question 17. They are distributed approximately uniformly over the Sun's surface both in position and in time. Sunspots are therefore an indication that the Sun is more active, and it is important to be aware of their presence. What was the major drawback of this idea? Which is closest to the temperature of the core of the Sun? the parallel that is the farthest northern location for the subsolar point during the year. D) 37,000 K. What is the solar wind? A protostar of about 1 solar mass is gradually contracting and, becoming d. A) 70% hydrogen, 28% helium, 2% other elements They are regions of reduced surface temperature, caused by concentrations of magnetic field flux that inhibit convection. D) The higher temperature would not affect the fusion rate but would cause the core to expand and cool until the temperature returned to normal, with the core at a new, slightly larger size. We don't know, since their lifetimes are longer than the age of. A) 4 billion years Sunspots are often accompanied by prominences and other features of the solar atmosphere. Solar radiation arriving at Earth's atmosphere and surface is called, The uneven distribution of insolation by latitude is primarily a result of. the troposphere and the stratosphere. d. B What voltage will he encounter on the input side of the transformer? in correct order of increasing temperature? D) The Sun has exhausted its supply of neutrinos. Explain the reasoning that led to our understanding of nuclear energy being the source of the Sun's light. As you approach the Sun, you will enter the corona, an extremely hot layer of gas, but so low in density that you won't really feel how hot it is. 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%. D Sunspots are surface disturbances caused by magnetic storms. The pressure from high-energy photons and neutrinos at the very, high Nuclear power plants on Earth create energy in the same way as the Sun. D) they are more likely to have their electronics "fried" by a solar flare during solar maximum. 10. When we say that the Sun is a ball of plasma, we mean that B) Energy is produced in the convection zone by nuclear fusion. Course Hero is not sponsored or endorsed by any college or university. C) Energy slowly leaks outward through the radiative diffusion of photons that repeatedly bounce off ions and electrons. The neutrinos are of the wrong type (muon neutrinos, instead of. C) electromagnetic force D They usually appear in groups in pairs, or in clusters called active regions, and can last anywhere from days to months. Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. D) our mathematical models of the solar interior are fairly accurate. C) 4 tons D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. 6. A) The Sun maintains a steady temperature. No lakes or streams have been damaged by acid precipitation. 30 seconds. is considered beneficial in trapping UV radiation. A) the uppermost layer of the Sun, lying just above the corona The spectral class of the star Enif is K2 while that of the Sun is, G2. D) They all occur only in the Sun's photosphere. At the height of this cycle, known as solar maximum, the Sun's magnetic poles flip. 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,. Which of the following is true regarding day length? B) core, convection zone, radiation zone, corona, chromosphere, photosphere Sunspots are regions on the suns surface that appear darker than their surroundings because they feature slightly cooler temperatures than their surroundings. All the photons produced in the Sun's core have been absorbed by the outer edge of what region of the Sun? is on the last page, tear it free and turn it in separately. The overall result of the proton-proton chain is Sunspots appear darker than the surrounding area because the magnetic field reduces the temperature at the location of the sunspot. B) The Sun's magnetic field, which plays a major role in the sunspot cycle, affects compass needles that we use on Earth. To estimate the central temperature of the Sun, scientists B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. How is the length of a star's lifetime related to the mass of the, *a. The chromosphere is the layer of the Sun that we see as its visible surface. What two pollutants react with water to produce acid rain? the greater the stellar mass, the less the luminosity. D. The Northern Hemisphere spring officially begins. Because of a combination of thin, icy clouds and Antarctic wind patterns which trap chlorine freed from CFCs. Higher-mass stars run through their lives faster and have shorter, b. D 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. . to theoretical models of the Sun. Laura miraba a Elin con amor. which of the following is not true of sunspots? C) Fusion reactions in the Sun have ceased. D) The chromosphere and corona are both best studied with radio telescopes. A) it is too dangerous to send the Space Shuttle to service satellites during solar maximum. Therefore, scientists predict that neutrinos should come from the Sun if fusion is occurring in its core. 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. Sunspots are cooler than the surrounding solar surface because Which of the following is not true of sunspots? A The top of the Earth's atmosphere is approximately B What processes are involved in the sunspot cycle? Sunspots are cooler areas on the sun's surface that are relatively darker than the surrounding surface and are caused by intense concentration of magnetic fields. What proportion of climate scientists has concluded that humans are the primary driver of today's climate warming? 3) What do we mean when we say that the Sun is in gravitational equilibrium? A geographic information system is a 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. A a heavy, uncharged nuclear particle, easily detected. Sunspots are often associated with large eruptions on the suns surface known as solar flares. a measurement of the masses of stars. 1.A. The ESSAY. absorbs most ultraviolet wavelengths. B) ten years ago. E. CO2 is a by-product of life processes. Approximately how many neutrinos pass through your body each second? D) gravitational force C) radiation and elements like carbon and nitrogen. and D (A), Based on temperature, the atmosphere is divided into. New resources and matter are being added to Earth's systems all the time. A high-mass star near the end of its life undergoes successive, cycles However, the energy of this light was released by fusion in the Sun's core about By what process do nuclear power plants on the Earth generate energy? As this question implies, safety precautions must be taken in the use of home generators and during power failures in general. 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 . 38) Which of the following statements about the sunspot cycle is not true? 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. 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. D) None; they are blocked by the Earth's atmosphere. How thick would you need to make this shield to ensure that it can stop a neutrino? Glacial moraines show when and where previous episodes of glaciation occurred. List at least two ways the sunspot cycle affects us on Earth. Select one: The spectral type of a star can be used to determine its surface temperature. E. The circle of illumination passes through both poles. *b. The sun emits radiant energy composed of, 11. B) The Sun's mass is about 30 times the mass of Earth. D) They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. Sunspots can appear in groups, or clusters, and their life-cycle can last from days to weeks to months. For example, by detecting solar neutrinos we can learn more about the fusion that is going on within the Sun's core. They are associated with intense magnetic activity, where the intense magnetic fields inhibit convection and suppress the formation of solar granules. Which is closest to the temperature of the Sun's core? d. The Sun will exhaust its nuclear fuel in about 9. If the surface temperature of white dwarf stars is four times that, of B) As the Sun was forming, gravitational contraction increased the Sun's temperature until the core become hot enough for nuclear fusion, which ever since has generated the heat that makes the Sun shine. Why must the Sun's rate of fusion gradually rise over billions of years? Finally, we can test our knowledge of nuclear physics and the fusion process in the core using observations of solar neutrinos. The Suns strong magnetic field gets twisted and tangled due to its convection, forming visible sunspot groups. C) hotter and denser than the surface. The next layer you encounter will be the chromosphere, a very hot layer of gas just above the visible surface of the Sun. E Sunspots can produce flares and prominences. in the reaction, and the energy adds mass by E = mc2. A repairman climbs the pole. , its "bank" condition, the borrow material has a moist unit weight of 129pcf, a water content of, 16.5% and an in place void ratio of 0.620. A) 6 H becomes 1 He + energy. Which of the following best describes why the Sun emits most of its energy in the form of visible light? b. Hundreds of lakes are incapable of supporting life due to high acidity. D) trillions of degrees. B A) strong force Energy from the core of the Sun first travels slowly through the convection zone and then much faster through the radiation zone. B) the Sun is made of atoms and molecules. The ozonosphere is critical to life because it? On a power pole down the block is a transformer designed to step down the voltage for household use. D) We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface.

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which of the following is not true of sunspots

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which of the following is not true of sunspots

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which of the following is not true of sunspots

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