which of the following is not true of sunspots
Along the way, changes in the Sun's magnetism produce a greater number of sunspots, more energy and cause solar eruptions of particles. the larger the stellar mass, the larger the luminosity. a. Sunspots are typically more common in higher latitudes of the Sun and will appear as dark, round patches. the troposphere and the stratosphere. Sunspots can appear in both the northern and southern hemispheres of the Sun, and usually occur in pairs of opposite magnetic polarity. Theories predict how many and what type of neutrinos should be observed. What two physical processes balance each other to create the condition known as gravitational equilibrium in stars? (D). B) wave motions in the solar interior The Sun Is Now More Active Than NASA Predicted. It Could Be In Its (a) Determine the energy of the second excited rotational state, with J = 2. *b. They can produce flares and coronal mass ejections. D) our mathematical models of the solar interior are fairly accurate. they C) The rate of nuclear fusion in the Sun peaks about every 11 years. D) The Sun has exhausted its supply of neutrinos. Sunspots are generally cooler than the surrounding photosphere because they are formed from regions of disrupted plasma flow. sunspots are surface disturbances caused by magnetic storms. A) The core would cool off and continue to shrink as its density increased. in correct order of increasing temperature? It is intrinsically brighter than the Sun. a disk-shaped nebula of dust and gas rotating around a relatively. C) of increased magnetic interference. E) lumps of denser material in the Sun, What are coronal holes? c) Determine how many gallons of water will need to be added to each truck. Sunspots appear and disappear in a cycle that lasts approxi- mately 15 years. After observing the Earth's weather patterns and the 11-year sunspot Which of the following is an example of humans influencing solar energy or seasonality? New resources and matter are being added to Earth's systems all the time. The Sun has sufficient hydrogen to continue fusing into helium for how much longer? A repairman climbs the pole. C) Not all fusion reactions create neutrinos. A) ejected into space in a solar wind. The sun's atmosphere: Photosphere, chromosphere and corona 9. B B) They are extremely rare. D After passing through this layer, you will reach the radiation zone, where photons are engaged in a random dance as they are continuously absorbed and re-emitted by the hot gas there. B ) gases in the radiation zone. Sunspots and Solar Flares | NASA Space Place - NASA Science for Kids Sunspots have distinct temperatures that are between 3000-4000 Kelvin, while the temperature of the rest of the Sun is 5000-6000 K. Sunspots are also constantly changing in shape and size, as their lifespans range from a few hours to several months. C) the strong force 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. The Sun is a relatively young star, near the beginning of its life. to overcome the collapse and stabilize the stellar, d. When is/was gravitational contraction an important energy generation mechanism for the Sun? No lakes or streams have been damaged by acid precipitation. c. Explain the reasoning that led to our understanding of nuclear energy being the source of the Sun's light. B) The Sun emits light of longer average wavelength. Which is the correct sequence for the following end-points of. D) The electron neutrinos created in the Sun's core change into another type of neutrino that we did not detect. gases in the convective zone. The subsolar point is at the Tropic of Capricorn (23.5 S). C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. How thick would you need to make this shield to ensure that it can stop a neutrino? A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B . *a. The longest day of the year occurs on the December solstice. a mixture of gases that behaves like single gas. C) sun spots additional A) 6 H becomes 1 He + energy. B) Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. Why do sunspots appear dark in pictures of the Sun? C) magnetic fields trap ionized gases that absorb light. Which of the following is true of the Sun's electromagnetic spectrum? It is held up by gas pressure due to the very high temperature, b. Solar radiation that is intercept by Earth is called. 5. Choose the best pair of words to complete the sentence. Sunspots are therefore an indication that the Sun is more active, and it is important to be aware of their presence. C) chemical reactions. The solar thermostat is analogous to the thermostat at home: it works to maintain a constant temperature. sulfur oxides and ozone A) collide. They exert pressure outward, counterbalancing atmospheric pressure. b) Determine how many trucks will be required to complete the job. 2. What is the evidence for the heliocentric model (sun is the center of the solar system) and evidence why the Geocentric model (the universe revolves around the earth) is wrong? They tend to cluster at high solar latitudes. It is true. E) They emit light in other wavelengths that we can't see. a measurement of the composition (abundances of elements) inside. The beginning of a solar cycle is a solar minimum, or when the Sun has the least sunspots. They increase and decrease in number, relatively regularly. Which of the following correctly describes how the process of gravitational contraction can make a star hot? A) The number of sunspots peaks approximately every 11 years. A) at the same temperature and density as the surface. 480 km (300 mi) above the Earth's surface. A) Early experiments designed to detect solar neutrinos found them, but in fewer numbers than had been expected. It is intrinsically fainter than the Sun. B) regions in the photosphere where magnetic lines gather, creating cooler areas with much less plasma the regular movement of a relatively constant number of sunspots. D) They are tiny black holes, absorbing all light that hits them. Sunspots are often associated with large eruptions on the suns surface known as solar flares. The Sun | Earth Sciences Quiz - Quizizz They often occur in pairs of opposite magnetic polarity. a band running from upper right to lower left, 21. Solved QUESTION 30 According to the lastest survey | Chegg.com the monitoring of a distant object without physical contact. surface disturbance on the Sun's surface caused by magnetic storms is called a(n). when surface temperatures are lower than warmer overlying air. sunspots can produce flares and prominences. Sunspots are temporary dark spots that appear on the surface of the Sun. Which of the following is not true of sunspots? C) It predicted that the Sun could shine for about 25 million years, but geologists had already found that Earth is much older than this. A) 3 H 1 Li + energy. B) strong magnetic fields slow convection and prevent hot plasma from entering the region. They also can create more auroras and can be a danger to satellites. They are distributed approximately uniformly over the Sun's surface both in position and in time. Sunspots are really darker than the surrounding photosphere, and thus appear as black spots on the sun's surface. 34%. C. It decreases to 1/4 its original magnitude. What would happen to the core of the sun if its temperature rose slightly? We can learn about the densities and other characteristics of the various layers within the Sun by studying how the waves propagate throughout the Sun. 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. E) they are caused by processes similar to those that create earthquakes, Imagine that you are trying to stop neutrinos with a lead shield. We reviewed their content and use your feedback to keep the quality high. Follow the model. B) It rapidly escapes from the Sun, traveling into space at nearly the speed of light. B mostly carbon dioxide and water vapor. Energy from the core of the Sun first travels slowly through the convection zone and then much faster through the radiation zone. Chapter 11 Flashcards | Quizlet The overall result of the proton-proton chain is A) The Sun maintains a steady temperature. D) Not all fusion reactions create electron neutrinos. b. A) the uppermost layer of the Sun, lying just above the corona As you plunge through the "surface" of the Sun, the photosphere, the temperature will be a slightly cooler 5,800 K, compared to the outer layers, and you will see the slightly cooler regions of sunspots and the granulation on the surface caused by the convection underneath. They are cooler than the surrounding photosphere of the Sun. C) small variations in the rate of nuclear energy generation in the solar interior One way to track the solar cycle is by counting the number of sunspots. They are distributed approximately uniformly over the Sun's surface both in position and in time. Save my name, email, and website in this browser for the next time I comment. After 11 years the Sun's magnetic polarity flips again, completing the 22-year period. The Suns strong magnetic field gets twisted and tangled due to its convection, forming visible sunspot groups. Choose A) the Sun is made of material that acts like a liquid acts on Earth. Sunspots are regions on the suns surface that appear darker than their surroundings because they feature slightly cooler temperatures than their surroundings. C B Question 4 options: They are holes where we can see into the the interior of the Sun. Granulation is evidence of what phenomenon? A) they are regions where convection carries cooler material downward. B) The churning gas is being stirred up by the strong solar wind. Curious about the Sun, Galileo used his telescope to learn more. B) They are all shaped by the solar wind. composition, origin, evolution. sunspots are brighter than the rest of the sun's surface. D. It results from the burning of fossil fuels. What is the term for loops or sheets of glowing gas ejected from active regions on the solar surface? Question 17. B The Sun's average surface (photosphere) temperature is about Imagine you are plunging into the Sun, starting from Earth. C) The Sun emits light of longer average wavelength. Suppose you put two protons near each other. A. the revolution of Earth around the Sun Question there were no dark energy, the expansion of the universe would be: constant accelerating decelerating . Which of the following observations would NOT be an indication of a, a. Sunspots are actively rotating regions that contain strong magnetic fields and are usually found in pairs. Which of the following best explains why nuclear fusion requires bringing nuclei extremely close together? 28. - In this case, circle the word le. The Sun Is Asleep. Deep 'Solar Minimum' Feared As 2020 - Forbes What is the velocity in the duct? They appear dark because they are cooler than other parts of the Sun's surface. method of calculating distance on a map. E) It joins with a nearby neutron to form a proton. which of the following is not true of sunspots? 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. 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. Why, then, does it require four protons. produces the auroras. Therefore, in conclusion, sunspots do not make the Earth hotter. Why do sunspots appear dark in pictures of the Sun? A More sunspots indicate increased solar radiation. A) Energy slowly leaks outward through the diffusion of photons that repeatedly bounce off ions and electrons. The CFC molecules react with ultraviolet light to release chlorine which then destroys ozone. A) chemical reactions the greater the stellar mass, the less the luminosity. True False 3. By what process do nuclear power plants on the Earth generate energy? Solar neutrinos coming from the Sun have been detected, but in fewer numbers than predicted by theoretical models. A) tunnels in the outer layers of the Sun that allow photons to escape and form the solar wind D) use computer models to predict interior conditions. produced Which of the following best describes air pollution? They can spawn eruptive disturbances such as solar flares and coronal mass ejections (CMEs). All radio signals pass through this region virtually unaffected. 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 the rarified space between galaxies. a verification of the Doppler equation for wavelength shift of. B) We did not know how to detect neutrinos. The presence of sunspots can indicate storms on the sun, which can release bursts of solar energy called solar flares that can interfere with communication systems and cause harm to astronauts in space. The spectral class of the star Enif is K2 while that of the Sun is, G2. B) They actually are fairly bright but appear dark against the even brighter background of the surrounding Sun. A star's lifetime does not depend on its mass. D) a large change in the amount of visible light emitted by the Sun b. A) nuclear fission. D) The chromosphere and corona are both best studied with radio telescopes. The top of the Earth's atmosphere is approximately they are surface disturbances caused by magnetic storms A c. they are brighter than the rest of the sun's surface 10 Q About six times as many neutrinos are observed than expected from, c. with a precise period of 11.3 years. D. the timing of Earth's perihelion and aphelion hotter. 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. The Sun and Sunspots method of collecting geologic data. . C) It is physically impossible to generate heat simply by making a star shrink in size. Which of the following best describes what would happen? B) The Sun's magnetic field, which plays a major role in the sunspot cycle, affects compass needles that we use on Earth. A) helium, gamma rays, and neutrinos. Why do sunspots appear dark? A c. Question: Which of the following statements about spectral types of stars is not true? Which of the following can be used to determine the temperature of a star? C) 8 minutes ago. (PDF) Robustness of sunspot equilibria - Academia.edu A) It was important when the Sun was forming from a shrinking interstellar cloud of gas. of indeterminate age, since one cannot estimate the age of the, d. 2. B) a bubbling pattern on the photosphere. question E. More solar energy is radiated when sunspots are fewer. Solved Which of the following is NOT a correct statement - Chegg Which of the following is not true of sunspots? 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 The overall fusion reaction by which the Sun currently produces energy is However, as geologists and paleontologists found evidence for an ancient Earth, astronomers realized that gravitational collapse could not be the dominant energy source of our Sun today. Which of the following choices is not a way by which we can study the inside of the Sun? prominences D) By measuring Doppler shifts, we observe vibrations of the Sun's surface that are created deep within the Sun. Key to Exam 3 - Form 1 A B) joules Briefly describe what you will see as you descend. C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. aims to reduce and eliminate all ozone depleting substances. C) converted to an amount of energy equal to 4 million tons times the speed of light squared. A. how (or if) their lifetimes depend on mass. D is lost from the atom, and energy is equivalent to mass, c. A car travelling at 60km/hr undergoes uniform acceleration at a rate of 2m/s until it's reach velocity of 120km/hr. Geography quiz 2 Flashcards | Quizlet C) areas of the corona where magnetic field lines project out into space, allowing charged particles to escape and form the solar wind C an irregular cycle averaging about 11 years, but sometimes, c. A) about one meter D. Since 1959, the global concentration of CO2 has increased by 27%. C) The number of solar flares peaks about every 11 years. sunspots can be up to 12 times larger than earth. from single stars, is that it provides, a. D 13. D) The Sun initially began generating energy through nuclear fusion as it formed, but today it generates energy primarily through the sunspot cycle. ANS: The length of the sunspot cycle is 11 years. GEOG 1112 - Chapter 3: (Questions)Earth's Atm, GEOG 1112k- Chapter 9: Climate Classification. A Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. is on the last page, tear it free and turn it in separately. Q. 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? They have relatively lower temperatures than the brighter, background photosphere. What is a possible solution to the solar neutrino problem? (Image credit: SOHO) The first of these refers to strong disturbances to Earth's magnetic field caused by ejected solar. B) At solar minimum, the first sunspots form at mid-latitudes on the Sun. A) nuclear fission The source of energy that keeps the Sun shining today is A "star" appears to become periodically dimmer for a few hours at, 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. Solution. 3. These heated the interior enough to allow gravitational contraction and nuclear fusion to occur. D) a thousand years ago. The Sun will exhaust its nuclear fuel in about At the time the hypothesis was suggested, what major problem was identified with the idea that the Sun was powered by gravitational contraction? gas pressure to halt the collapse. 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. C) We have sent probes below the surface of the Sun. A. Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. E. Only about 1/3 of the expected number of neutrinos is observed. The cesium iodide (CsI) molecule has an atomic separation of 0.127 nm. B) use hot gas to create a small Sun in a laboratory. D) Sunspots are surface disturbances caused by magnetic storms. Which of the following statements is NOT true for sunspots? B A mi padre y a m (nos-te) importan los actores de Hollywood. Space scientists study these to see how they perturb Earth's magnetic fields and affect satellites circling around Earth, but . E) molecular hydrogen. nitric acid and sulfuric acid, formed from nitrogen oxides and sulfur dioxide. D) reabsorbed as molecular hydrogen. producing excess energy and therefore will not produce the. How do we know what goes on under the surface of the Sun? B C) monitor changes in Earth's atmosphere. C) They are regions nearly devoid of gas. While the atmosphere exerts pressure, it is a negligible amount. A) building mathematical models that use the laws of physics B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. B) the Sun generates energy by nuclear fusion. which of the folloing statements about ionization energy is true? A "star" image separates into two distinct images periodically, c. D) orange How do massive stars normally end their lives? young Sunspot activity is often observed and studied to gain important data about the Suns atmosphere and the local magnetic environment of the Solar system. d. Main sequence stars all have approximately the same mass, by, 25. *b. A) 4 billion years Here's a detailed explanation for each option: E) Energy is conserved so while the gas moves up and down, there is no net transport of energy. It occurs in large amounts in the atmosphere relative to other gases, such as nitrogen and oxygen. A) The number of sunspots peaks approximately every 11 years. E) Radio waves can pass directly through the gas which allows us to see the core. We also provide a link between extrinsic uncertainty arising in games (e.g. predicted A) variations in the height of the solar surface Daylength is longest on the summer solstice and is shortest on the winter solstice, D The Sun continued to contract until the core became hot enough to sustain nuclear fusion. Neutrinos from the core collide with gas atoms and prevent them, c. D) No one understood how it could be possible for neutrinos to be produced in the Sun. E) gradually expanding in size, How do human-built nuclear power plants on Earth generate energy? B Which of the following statements regarding active - Course Hero a. structure, origin, evolution C) another name for the force that holds protons together in atomic nuclei. Which of the following is true regarding day length? The number of sunspots has been historically linked to the 11-year sunspot cycle, where sunspots peak in intensity approximately every 11 years. Which of the following is not a method astronomers use to determine the physical conditions inside the Sun? created the Intergovernmental Panel on Climate Change. What is shown by the small-scale changes in the shading in the figure above? It has a ratio of turns N1/N2N_1 / N_2N1/N2 of 100 to 1. Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. 1. A) It predicted that the Sun would shrink noticeably as we watched it, but the Sun appears to be stable in size. a. B) We can make a computer model of the Sun's interior that allow us to predict the observable properties of the Sun. B Daylength variations are negligible for all locations throughout the year except above the Arctic Circle. From the center outward, which of the following lists the "layers" of the Sun in the correct order? Which of the following statements about the sunspot - Course Hero 12. a measurement of the surface temperatures of stars. C) The rate of nuclear fusion in the Sun peaks about every 11 years. Sunspots can also be the precursors to solar flares, which can be dangerous to satellites, astronauts, and electrical grids on Earth. These are now known as the Galilean moons: Io, Ganymede, Europa and Callisto. a measurement of the masses of stars. 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. B) The density of the core would decrease, causing the core to cool off and expand. QUESTION 30 According to the lastest survey estimates, which of the following classes of stars makes up about 8% of all the stars in the universe? The 11 year sunspot cycle on the Sun is, a. 32. Write the Tollens' reagent chemical formula. 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. True False. C) This process could not possibly lead to the observed power output of the Sun. A) They have a tendency to pass through just about any material without any interactions. 14. D Furthermore, the magnetic fields associated with sunspots have the ability to absorb light, providing the dark spots with an even further reduction in contrast. Magnetic fields on the sun are produced by the sun's uneven rotation and. is considered beneficial in trapping UV radiation. They are associated with intense magnetic activity, where the intense magnetic fields inhibit convection and suppress the formation of solar granules. Humans have not sent a spacecraft into the interior of the Sun to confirm any models of the interior. Which of the following is not a method astronomers use to determine the physical conditions inside the Sun? c. E) 4 H 1 He + energy. Describe two general ways we learn about the Sun's interior. computer-based processing tool for analyzing geographic data. power of the temperature by the Stefan-Boltzmann relation, why. The neutrinos are of the wrong type (muon neutrinos, instead of. They occur in regions of lower-than-average magnetic fields. b. Which is the strongest of the fundamental forces in the universe? D Because they are cooler, they emit less thermal radiation per unit area and therefore look dark in contrast to brighter surrounding regions. C) 600 tons ozone and VOCs. D) The Sun becomes much brighter. Which of the following is TRUE? If the Sun's core suddenly shrank a little bit, what would happen in the Sun? structure, origin, temperature. E) Sunspots can produce flares and prominences. 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. B) Neutrinos are created as a by-product of the proton-proton chain. B All known energy sources were eliminated and only after the recognition that mass can be converted directly into energy, was the solution of the Sun's light as nuclear energy understood. 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. c. Suppose that, for some unknown reason, the core of the Sun suddenly became hotter. We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. 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. Today, it far exceeds its natural range of 180 to 300 ppm. Right now, about half the amount of hydrogen in the core of the Sun has been fused into helium. Which of the following statements about the sunspot cycle is not true A rapidly rotating neutron star, producing beams of radio energy. D) The Sun's gas is on fire like flames from wood or coal, and these flames emit visible light. Sunspots can have dramatic effects on the Earths space environment, including the generation of coronal mass ejections, solar flares, and other space weather phenomena. aims to reduce and eliminate all ozone depleting substances. 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.Menominee Vs Whitefish, Scrappy Larry Susan Obituary, Conclusion Of Tropical Cyclone Eloise, Churches For Sale Queensland, Articles W