B Sunspots occur in pairs. They appear dark because they are cooler than other parts of the Sun's surface. It primarily absorbs harmful infrared wavelengths. Three criteria used for classification of the atmosphere are They often appear in pairs or clusters. What Is the Solar Cycle? | NASA Space Place - NASA Science for Kids C Determine the distance traveled a Wayne didn't need a degree in _____ to know that the living version of the beast whose bones he discovered was _____ by human standards of beauty. B. Which of the following is true of the ionosphere? B) There are many sunspots visible on the surface of the Sun. predicted The solar spectrum is a good example of what kind of spectrum? What was the major drawback to this idea? No, sunspots do not make the Earth hotter. How much mass does the Sun lose through nuclear fusion per second? C. They can be larger in diameter than Earth. c. . E. The equator experiences at least six-hours difference in day length from winter to summer. (b) Why does the thickness of the dam increase with depth. 3,200 km (1,988 mi) above the Earth's surface. A) The number of sunspots peaks approximately every 11 years. a. they can be several times larger than earthb. 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. Sunspots appear darker than the surrounding area because the magnetic field reduces the temperature at the location of the sunspot. the greater the stellar mass, the less the luminosity. 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. Which of the following is correct regarding day length? A hot-air home heating system takes 500 ft3/min (cfm) air at 14.7 psia, 65 F into a furnace, heats it to 130 F, and delivers the flow to a square duct 0.5 ft by 0.5 ft at 15 psia. B) "sunquakes" are caused by similar processes that create earthquakes on Earth. D) structure within sunspots. How thick would you need to make this shield to ensure that it can stop a neutrino? C) The Sun initially began making energy through chemical reactions. Sunspots and Solar Flares | NASA Space Place - NASA Science for Kids The most likely places where stars and planetary systems are forming. B) solar flares B) variations in the temperature of the photosphere 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 impossible, because one cannot have cool stars above the main. Which of the following is true of chlorofluorocarbons? B) Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. The corona and chromosphere are hotter than the photosphere. Under these conditions, hydrogen atoms come so close together that they fuse. It consists of gamma ray, X-ray, ultraviolet, visible, and infrared wavelengths. Sunspots are actively rotating regions that contain strong magnetic fields and are usually found in pairs. Climate Literacy Quiz - Teaching Climate 3) What do we mean when we say that the Sun is in gravitational equilibrium? The rate of fusion then determines how many neutrinos should be produced by the Sun, and theories estimate how many of these should be detected here on Earth. , 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. D B an irregular cycle averaging about 11 years, but sometimes, c. produced A Today, it far exceeds its natural range of 180 to 300 ppm. Why do you turn down this excellent offer? Where are the most massive stars to be found in the main sequence of, b. which of the following is not true of sunspots? 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. ________ is used in a barometer because ________. E) both B and D. Studies of sunquakes, or helioseismology, have revealed that B) 4 million tons (E). One way to track the solar cycle is by counting the number of sunspots. The solar thermostat is analogous to the thermostat at home: it works to maintain a constant temperature. A) They are composed of different elements than the rest of the sun. Daylength is longest on the summer solstice and is shortest on the winter solstice, D B) The Sun is generating much less energy than we think it is. another name for an electron that carries a positive charge. The Sun's surface, as we see it with our eyes, is called the 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? , A new embankment, when completed will occupy a net volume of 257,000cy. D A dam is used to hold back a river. Which of the following is not true of sunspots? All radio signals pass through this region virtually unaffected. Which of the following is the best answer to the question, "Why does the Sun shine?" At the center of the Sun, fusion converts hydrogen into 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. an earthbound technique not used in modern satellites. The Sun appears to have a cycle of about 11 years during which it waxes and wanes. C) Energy is transported outward by the rising of hot plasma and the sinking of cooler plasma. They can spawn eruptive disturbances such as solar flares and coronal mass ejections (CMEs). causes lung irritation, asthma, and susceptibility to respiratory illness in humans. Suppose that, for some unknown reason, the core of the Sun suddenly became hotter. C) Our understanding of fusion in the Sun suggested that neutrinos should be destroyed before they arrive at Earth, yet neutrinos were being detected. B) Solar neutrinos have been detected, but in fewer numbers than predicted by theoretical models. B) With each subsequent peak in the number of sunspots, the magnetic polarity of the Sun is the reverse of the previous peak. produces industrial smog. Which of the following statements about the sunspot cycle is not true? B. According to modern science, approximately how old is the Sun? Which of the following statements about solar sunspots is NOT true? B) repel one another. Briefly describe what you will see as you descend. Magnetism is the force that magnets exert when they attract or repel one another. Sunspots typically have a dark center still with a lighter edge, known as the umbra, and they may also have a brighter region called a penumbra that surrounds the umbra. two zones that absorb radiation from the Sun. The fundamental nuclear reaction occurring in the core of the Sun is Briefly describe the phenomena of the sunspot cycle. They have relatively lower temperatures than the brighter, background photosphere. the regular movement of a relatively constant number of sunspots. C) electromagnetic force diagram to shift slowly, 20. E) The electron neutrinos created in the Sun change into another type of neutrino that we do not detect. What is the common cause of sunspots, flares, and prominences? A) nuclear fission C) gravitational force and surface tension D) The core would heat up, fusion rates would increase, and the core would re-expand. B) the Sun generates energy by nuclear fusion. A) The rate at which fusion occurs would increase, leading to a contraction of the core, which would in turn cause the temperature to rise even further. A "star" image separates into two distinct images periodically, c. D *c. A E) The rate of fusion is not rising; it is actually decreasing over time. Right now, about half the amount of hydrogen in the core of the Sun has been fused into helium. What is a possible solution to the solar neutrino problem? DOC www.ucolick.org The pressure from high-energy photons and neutrinos at the very, high 2. Commonly associated with turbulent solar weather, magnetic field lines become more tightly wound as the rotating field and plasma interact. an C With his observations of the phases of Venus, Galileo was able to figure out that the planet orbits the Sun, not the Earth as was the common belief in his time. 10. A Which of the following is not true of carbon dioxide? A.True B.False 2.Harvesting energy from water,wind,and geothermal vents requries the use of A. aquaculture B . Question 4 options: They are holes where we can see into the the interior of the Sun. Write the Tollens' reagent chemical formula. B. ionization energy is the amount of energy used to add an electron to an atom. B) one hundred years ago. B This site is using cookies under cookie policy . Which of the following is TRUE? Sunspots are therefore an indication that the Sun is more active, and it is important to be aware of their presence. B) hydrogen compounds such as methane. Select only one. And at minimum you have a minimum number of sunspots, and at maximum, a maximum. (b) Find the frequency of the photon absorbed in the J = 1 to J = 2 transition. Which of the following is not true regards to Earth as system? mostly carbon dioxide and water vapor. Which of the following is NOT a correct statement about sunspots? Briefly describe why the fact that we detect neutrinos coming from the Sun supports the idea that the Sun generates energy by nuclear fusion. Which of the following conclusions can be drawn about Enif from. C) The rate of nuclear fusion in the Sun peaks about every 11 years. Because of the electromagnetic force, the two protons will The sun has an 11-year cycle of sunspots on its surface. E) It joins with a nearby neutron to form a proton. They are cooler than the surrounding photosphere of the Sun. A) More sunspots indicate increased solar radiation. D) a large change in the amount of visible light emitted by the Sun Which of the following best describes why the Sun emits most of its energy in the form of visible light? C) chemical reactions A) Early experiments designed to detect solar neutrinos found them, but in fewer numbers than had been expected. They are likely carved out by turbidity currents, which occur when sediment-laden water rapidly moves down slope.
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