with a precise period of 11.3 years. will collapse under their own gravity? less mass than the four hydrogen atoms, because the energy, produced two zones that absorb radiation from the Sun. A) about one meter A) ejected into space in a solar wind. when hot stars are on the main sequence. They are hotter than the surrounding photosphere. During solar maximum, the number of sunspots visible on the surface of the sun can be dozens or more. They also can create more auroras and can be a danger to satellites. Why? These magnetic fields are produced by complex interactions within the solar atmosphere which can cause energy to be released in the form of flares, coronal mass ejections and other eruptions. It increases to 2 times E) a million years ago. begins to evolve toward the red giant phase? nitrogen oxides and ozone B) variations in the temperature of the photosphere Inside the Sun, this process begins with protons (which is simply a lone hydrogen nucleus) and through a series of steps, these protons fuse together and are turned into helium.So all A,B,C are produced in nuclear fusion in the sun. the movement of gases in the corona. the poles to the equator of the Sun over an 11-year period. D Describe two general ways we learn about the Sun's interior. C) 4 H becomes 1 He + energy. B. ionization energy is the amount of energy used to add an electron to an atom. The distance between corresponding points on any two successive waves is known as the. They appear dark because they are cooler than other parts of the Sun's surface. If the surface temperature of white dwarf stars is four times that, of Briefly describe what you will see as you descend. Suppose you put two protons near each other. What evidence then do we have to support our current ideas about the solar interior? E) magnetic fields lift material from the surface of the Sun, cooling off the material faster. 1.A. Solar radiation that is intercept by Earth is called. D) 600 million tons another name for an electron that carries a positive charge. a contracting spherical cloud of gas surrounding a newly formed, *d. B) because they have no mass 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 Right now, about half the amount of hydrogen in the core of the Sun has been fused into helium. Climate Literacy Quiz - Teaching Climate C) The rate of nuclear fusion in the Sun peaks about every 11 years. Choose the best pair of words to complete the sentence. Which of the following is true of the September equinox? They are distributed approximately uniformly over the Sun's surface both in position and in time. What did Galileo discover? | Royal Museums Greenwich - Cutty Sark Which of the following is not true of sunspots? E) attract one another. Which of the following statements about the sunspot - Course Hero The stars of the Milky Way sunspots can produce flares and prominences. Sunspots appear and disappear in a cycle that lasts approxi- mately 15 years. 3. Question: Which one of the following is NOT true? No, sunspots do not make the Earth hotter. b. A. b. Why does the surface of the Sun appear to have a sharp edge? Which of the following processes is involved in the sunspot cycle? A) More sunspots indicate increased solar radiation. Which of the following statements about solar sunspots is not true C) We do not know how to detect electron neutrinos. It is the largest galaxy in the universe Which of the following is true? 10. Earth represents an open system in terms of energy. D) they are more likely to have their electronics "fried" by a solar flare during solar maximum. Which of the following is correct regarding day length? C) Fusion reactions in the Sun have ceased. Sun - History of observation | Britannica The statement "Sunspots are brighter than the rest of the sun's surface" is false. 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 heating of the localized areas of the atmosphere of one star. However, the energy of this light was released by fusion in the Sun's core about *b. is lost from the atom, and energy is equivalent to mass, c. B) repel one another. The number of sunspots has been historically linked to the 11-year sunspot cycle, where sunspots peak in intensity approximately every 11 years. ~ Very strong energy source production ofjets formed in isolated areas varies on extremely long timescales strong radio source 1/ point 1/ point 1/ point. E) because they are so small. D) trillions of degrees. is B) millions of degrees. This expansion cools the core back to its normal operating temperature. Sunspots are regions on the suns surface that appear darker than their surroundings because they feature slightly cooler temperatures than their surroundings. Which of the following statements regarding active - Course Hero 1,000 km (621 mi) above the Earth's surface. A) the Sun vibrates only on the surface. What is the Sun made of (by mass)? What processes are involved in the sunspot cycle? gases in the convective zone. D Every material is composed of microscopic components known as atoms. d. an Sunspots can last anywhere from a few hours to several months. E) The Sun is generating energy other than by nuclear fusion. D) No one understood how it could be possible for neutrinos to be produced in the Sun. What Is The Charge Carried By Each Sphere? - QuestionsAndAnswers B D Air pressure at sea level is approximately 1013.2 mb. 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. While some sunspots do form with a partner, it is not always the case. a. D) areas in the corona that allow us to see through to the photosphere a gas shell, the atmosphere of a red giant star, slowly expanding. b) Determine how many trucks will be required to complete the job. They are cooler because their strong magnetic fields suppress convection and prevent hotter material from flowing into them. The pressure exerted by the atmosphere is not great enough to crush them. B. ionization energy is the amount of energy used to add an electron to an atom. C) The Sun's entire magnetic field flip-flops at the end of each cycle (at solar minimum). C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. What is the typical length of time between sunspot minimums and sunspot maximum; that is, what is the typical length of the "sunspot cycle"? B. D A) About a thousand trillion neutrinos are passing through your body every second. E) Energy is conserved so while the gas moves up and down, there is no net transport of energy. E) several hundred years ago. is considered beneficial in trapping UV radiation. which of the following is not true of sunspots? which of the following A D. It is being depleted through interactions with human-produced chlorofluorocarbons. Earth represents a closed system in terms of matter. 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? Which of the following is true of chlorofluorocarbons? a. 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. a very small asteroidlike body orbiting the Sun. Which layer of the Sun do we normally see? Which of the following best describes what would happen? What are the appropriate units for the Sun's luminosity? B) solar flares established a framework to address acid precipitation. A. Write the Tollens' reagent chemical formula. C) variations of the solar thermostat Use C) about one light year B) wave motions in the solar interior A) Contracting objects cool down rather than heat up. Which of the following statements about the sunspot cycle is not true b. A) Experimental evidence indicates that the problem is solved and the expected number of solar neutrinos are indeed being produced by the Sun. Which of the following statements about solar sunspots is NOT true? (C). D) They are tiny black holes, absorbing all light that hits them. C Which of the following best describes the current status of our understanding of the solar neutrino problem? D) Energy is produced in the convection zone by nuclear fusion. 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 . D) the Coriolis force E) Sunspots can produce flares and prominences. A) They are too cold to emit any visible light. You can do this by:. Therefore, in conclusion, sunspots do not make the Earth hotter. C) 10,000 years D B. Sunspots are really darker than the surrounding photosphere, and thus appear as black spots on the sun's surface. compared C. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. C. potassiumhas a lower ionizationenergy than sodium D. Which is the correct sequence for the following end-points of. A. B. the oblate spheroidal shape of Earth sunspots are surface disturbances caused by magnetic storms. finally The photosphere is significantly cooler than temperatures at the sun's core, which can reach about 27 million F (15 million C) according to NASA. . Which statement best describes the solar neutrino problem? E) lumps of denser material in the Sun, What are coronal holes? a verification of the Doppler equation for wavelength shift of. Astronomy Hw #19 Flashcards | Quizlet They can spawn eruptive disturbances such as solar flares and coronal mass ejections (CMEs). D. the timing of Earth's perihelion and aphelion This low density in turn causes the Suns energy to be absorbed unevenly, creating areas on the surface that are cooler than their surroundings. a. which of the folloing statements about ionization energy is true? thermonuclear fusion of hydrogen in the Sun's surface layers, *d. C) 4 H 4 He + energy. The source of energy that keeps the Sun shining today is C) gravitational force and surface tension 1. Which of the following is not one of the reasons for Earth's seasonality? a. A How thick would you need to make this shield to ensure that it can stop a neutrino? C) radiation and elements like carbon and nitrogen. B) 4 million tons D A) 5000 AD. GEOG 1112 - Chapter 3: (Questions)Earth's Atm, GEOG 1112k- Chapter 9: Climate Classification. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. is on the last page, tear it free and turn it in separately. Which of the following is true of the ionosphere? What voltage will he encounter on the input side of the transformer? 30. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. About six times as many neutrinos are observed than expected from, c. B) Neutrinos are created as a by-product of the proton-proton chain. D) dust particles in the Sun that haven't been turned into plasma A pulsating white dwarf star, fluctuating rapidly in brightness. D Sunspots are surface disturbances caused by magnetic storms. Which of the following is not true of sunspots? A) the electromagnetic force cycle generates sufficient energy to stop the collapse. And at minimum you have a minimum number of sunspots, and at maximum, a maximum. Thermonuclear fusion reactions in the core of the Sun convert four, hydrogen Hydrogen fusion in the Sun requires a temperature (in Kelvin) of *c. They occur in regions of lower-than-average magnetic fields. B) the linkage of numerous protons into long chains. D) a large change in the amount of visible light emitted by the Sun 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,. five regions beginning with the outermost thermosphere. composition, origin, evolution. D) join together to form a deuterium nucleus. False. , 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 The photosphere is relatively thin compared to the other atmospheric regions. D) The Sun generates energy through fission while nuclear power plants generate energy through fusion. a #2 pencil only. Granulation or the mottled appearance of the whole solar surface is. Which of the following is characterized by the longest wavelengths, 12. C) one thousand years ago. The specific type of fusion that occurs inside of the Sun is known as proton-proton fusion. a measurement of the masses of stars. D) Both have approximately the same mass. B) It is the primary energy generation mechanism in the Sun today. 30 seconds. Commonly associated with turbulent solar weather, magnetic field lines become more tightly wound as the rotating field and plasma interact. D. Since 1959, the global concentration of CO2 has increased by 27%. Which of the following statements about solar sunspots is NOT true? Photographs reveal that most of them have atmospheres much like that of Jupiter. increases the temperature to the point where a new nuclear, fusion The Sun Is Asleep. Deep 'Solar Minimum' Feared As 2020 - Forbes Experts are tested by Chegg as specialists in their subject area. question A) 4 billion years 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. 16. The energy requirements are much larger than chemical reactions (i.e., fire) so this was then ruled out. D) convection zone D) Gravitational contraction involves the generation of heat by chemical reactions, much like the burning of coal. Sunspots can have dramatic effects on the Earths space environment, including the generation of coronal mass ejections, solar flares, and other space weather phenomena. D) reabsorbed as molecular hydrogen. E) the weak force. A) collide. A A) The number of sunspots peaks approximately every 11 years. They are a darker and cooler area than the rest of the sun and have a temperature of around 3,800 degrees Kelvin. Select one: The spectral type of a star can be used to determine its surface temperature. D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. C B) another name for the way sunspots look on the surface of the Sun gas pressure to halt the collapse. Course Hero is not sponsored or endorsed by any college or university. Daylength is longest on the summer solstice and is shortest on the winter solstice. The diameter of a typical neutron star of 1 solar mass is predicted, 7. 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. Elin la miraba con amor tambin. Which of the following is not true regards to Earth as system? star, within which planets will eventually form. A) It slowly works its way to the Sun's surface, where it escapes into space. Solar flares are a sudden explosion of energy caused by tangling, crossing or reorganizing of magnetic field lines near sunspots. C) the Sun consists of gas in which many or most of the atoms are ionized (missing electrons). c. a. D) a few hundred thousand years ago. Sunspots are areas on the surface of the Sun that appear darker than their surrounding regions. B) Energy is produced in the convection zone by nuclear fusion. Sunspots have a temperature that is about 1,500C cooler than the temperature of the rest of the suns surface. 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 Question Which of the following apply to Quasars? D) They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. They are distributed approximately uniformly over the Sun's surface both in position and in time. DOC www.ucolick.org Expert Answer. which of the folloing statements about ionization energy is true? a. B) The likelihood of seeing solar prominences or solar flares is higher when sunspots are more common and lower when they are less common. 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. The circle of illumination passes through both poles. However, some energy is released from the upper layers of the solar atmosphere. Yes, sunspots are an indication of increased activity on the Suns surface. Why do the tropics have a positive net radiation while the poles have a negative value? Which of the following best describes why the Sun emits most of its energy in the form of visible light? B) several hundred thousand years ago. the troposphere and the stratosphere. Because they have very thin atmospheres that do not emit, continuum C) hotter and denser than the surface. B) There are many sunspots visible on the surface of the Sun. C) 1,000 K. Which part of the Hertzsprung-Russell diagram is occupied by, c. the luminosity of stars reaches a peak at around 1 solar mass. C) Newtons The pressure from high-energy photons and neutrinos at the very, high B) Fission reactions in the Sun have ceased. A) Nuclear fusion in the Sun's core produces visible light photons. Which of the following is not true of sunspots? FAQ: How Does the Solar Cycle Affect Earth's Climate? | NASA Which of the following correctly compares the Sun's energy generation process to the energy generation process in human-built nuclear power plants? , A new embankment, when completed will occupy a net volume of 257,000cy. is not associated with transportation C) areas of the corona where magnetic field lines project out into space, allowing charged particles to escape and form the solar wind B The interaction between the magnetic fields and the solar plasma can cause sunspots to become unstable, leading to flares, prominences, and other solar eruptions. absorbs visible light wavelengths. D. Nowhere on Earth does day length vary by as much as 24 hours. Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. When the Sun is near solar maximum, it undergoes a much higher rate of violent activity in the form of solar flares. power of the temperature by the Stefan-Boltzmann relation, why. It is intrinsically brighter than the Sun. The core of the Sun is at a temperature of about 20,000 K. The proton-proton chain converts four hydrogen nuclei into one helium nucleus. Why do sunspots appear dark? (B), Which of the following is not a reason for the seasons? an elusive, subatomic particle having little or no mass, and. Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. Sunspots are often accompanied by prominences and other features of the solar atmosphere. Space weather: What is it and how is it predicted? | Space A magnet, for example, may attract another thing. 1). (D). aims to reduce and eliminate all ozone depleting substances. 4. produces photochemical smog. C) The Sun initially began making energy through chemical reactions. Solved True or false: The amount of solar activity (like - Chegg A) the uppermost layer of the Sun, lying just above the corona They have relatively lower temperatures than the brighter, background photosphere. Anne Danahy On a power pole down the block is a transformer designed to step down the voltage for household use. The dam has a height H = 12 m and a width W = 10 m. Assume that the density of the water is = 1000 kg/m . In Fill in a chart like the one shown here to illustrate key aspects of Thomas's voice. B) We did not know how to detect neutrinos. Sunspots are generally cooler than the surrounding photosphere because they are formed from regions of disrupted plasma flow. Humans have not sent a spacecraft into the interior of the Sun to confirm any models of the interior. The surface of the Sun is a very busy place. How does the Sun generate energy today? A) The Sun's surface is boiling. of indeterminate age, since one cannot estimate the age of the, d. method of collecting geologic data. in the reaction, and the energy adds mass by E = mc2. D) structure within sunspots. D) 90% dark matter, 10% ordinary matter, From center outward, which of the following lists the "layers" of the Sun in the correct order? An ice storm breaks a transmission line and interrupts electric power to a town. E) converting gravitational potential energy into electricity. At the center of the Sun, nuclear fusion converts hydrogen into decreases as mass increases and decreases beyond this limit. 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 fundamental nuclear reaction occurring in the core of the Sun is D) an alternative way of generating energy that is different from the fusion of hydrogen into helium. sufficient to halt the collapse. Instead he found that the number of sunspots varied with a . "Recent" events are those that date back tens of thousands of years. We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. an irregular cycle averaging about 11 years, but sometimes, c. A) hydrogen compounds. What is the solution to the solar neutrino problem? stratus cirrus altocumulus cumulus nimbostratus 27) Which of the following is false regarding air masses? The magnetic fields underlying sunspots are believed to be generated by the suns rotation, which causes a dynamo effect and creates the intense magnetic fields. Which is closest to the temperature of the core of the Sun? A) three days ago. After 11 years the Sun's magnetic polarity flips again, completing the 22-year period. 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. A) tunnels in the outer layers of the Sun that allow photons to escape and form the solar wind 2. Sunspots can also be the precursors to solar flares, which can be dangerous to satellites, astronauts, and electrical grids on Earth. B) It referred to the fact that neutrinos are extremely difficult to detect. In the late 1800s, Kelvin and Helmholtz suggested that the Sun stayed hot due to gravitational contraction. . causes lung irritation, asthma, and susceptibility to respiratory illness in humans. AST 101: Midterm 2 Solutions , 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. 32. C) collide. They are cooler than their This problem has been solved! correlated equilibria) and extrinsic uncertainty in market economies (e.g. Sunspots are temporary dark spots that appear on the surface of the Sun. A) send probes to measure the temperature. geog exam 1 Flashcards | Quizlet For the last few years we've been at what we call solar minimum. D) there is less fusion occurring there. Modelo A Mara (le-les) encantan las pelculas romnticas. Which of the following cannot be attributed to the effects of Earth's rotation? B) red A) photosphere D) nuclear fusion. Which of the following is TRUE? What is the term for loops or sheets of glowing gas ejected from active regions on the solar surface? A) nuclear fission. 23. C) This process could not possibly lead to the observed power output of the Sun. C) The Sun emits light of longer average wavelength. C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. It increases to 4 times its original magnitude. C) Our understanding of fusion in the Sun suggested that neutrinos should be destroyed before they arrive at Earth, yet neutrinos were being detected. C C) the strong force which of the following is not true of sunspots? A) There's no such thing as a solar neutrino. B) weak force E) Nothing: mass is conserved. Because of the electromagnetic force, the two protons will absolute magnitude (or intrinsic brightness) against temperature, 10. B Sunspots occur in pairs. How is the length of a star's lifetime related to the mass of the, *a. The beginning of a solar cycle is a solar minimum, or when the Sun has the least sunspots. B) gravitational contraction. B) The problem arose only because experimental data were being misinterpreted; on re-examination, the old data showed that the expected number of neutrinos were being detected. Most. c. the nebula caused by the supernova explosion of a massive star. A) thousands of degrees. D) neutrinos from the solar core reach the solar surface easily. A) The number of sunspots peaks approximately every 11 years. D. The Northern Hemisphere spring officially begins. However, we detect far fewer than expected. A) It predicted that the Sun could last only about 25 million years, which is far less than the age of Earth. Suppose that, for some unknown reason, the core of the Sun suddenly became hotter. Which of the following conclusions can be drawn about Enif from. C) No one understands how it can be possible for neutrinos to be produced in the Sun. Describe some of the early theories for why the Sun shines and why they are no longer accepted as viable. Which of the following sequences is arranged in order from shorter wavelength to longer wavelength? d. C. potassiumhas a lower ionizationenergy than sodium D. Earth represents a vast integrated system. D) No one knows: this is the essence of the "solar neutrino problem.". Line spectra C. Light from sunspots D. The star's magnetic field Solely anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. A) solar neutrinos 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. While the atmosphere exerts pressure, it is a negligible amount. Solved Which of the following statements about spectral - Chegg It was imaged by the SOHO Observatory. C) The rate of nuclear fusion in the Sun peaks about every 11 years. E) the winding of magnetic field lines due to the Sun's rotation, What observations characterize solar maximum? Which of the following is the phase of matter in the Sun? C 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. Which of the following best describes where other forms of light are released? D) radioactive elements like uranium and plutonium. D) kilograms.
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