C) 5 billion years. B) It referred to the fact that neutrinos are extremely difficult to detect. A) the uppermost layer of the Sun, lying just above the corona D) The solar neutrino problem remains as perplexing as ever, and indeed makes everything we think we know about stars suspect. D) The Sun was born with a supply of neutrinos that it gradually emits into space. What happens to energy in the Sun's convection zone? Daylength is longest on the summer solstice and is shortest on the winter solstice. 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. D) join together to form a deuterium nucleus. How do we know what goes on under the surface of the Sun? C The helium atom has, a. 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. Neutrinos from the core collide with gas atoms and prevent them, c. D) the Sun is roughly the same color as blood. 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. C *c. They occur in regions of lower-than-average magnetic fields. a. A. E) radiation zone. They exert pressure outward, counterbalancing atmospheric pressure. , 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. They increase and decrease in number, relatively regularly. The gravitational disturbance of one star's motion by its. You can do this by:. TrueFalse. E) Sunspots can produce flares and prominences. C) elements in the Sun other than hydrogen and helium Over time, solar activityand the number of sunspotsincreases. C. Day length varies more at the equator than at higher latitudes. 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? D) No one understood how it could be possible for neutrinos to be produced in the Sun. What stops the Sun from collapsing under the force of its own, *a. B) The Sun emits light of longer average wavelength. A. Why are humans and other living things not crushed by the pressure of the atmosphere? They tend to cluster at high solar latitudes. B and A) the specific set of nuclear reactions through which the Sun fuses hydrogen into helium. 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. A) nuclear fission. C) The rate of nuclear fusion in the Sun peaks about every 11 years. B 2. A (A), Based on temperature, the atmosphere is divided into. True False. The poles have the smallest variation in summer and winter day lengths. *d. Which of the following major perturbations can occur to a close, binary Two of the protons are converted into neutrinos. a somewhat irregular but always present cycle of build-up and, d. A) solar neutrinos While the atmosphere exerts pressure, it is a negligible amount. What is the term for loops or sheets of glowing gas ejected from active regions on the solar surface? B. Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. predicted A) The Sun rotates faster at its poles. surface disturbance on the Sun's surface caused by magnetic storms is called a(n). The CFC molecules react with ultraviolet light to release fluorine which then destroys ozone. Finally, we can test our knowledge of nuclear physics and the fusion process in the core using observations of solar neutrinos. B) ejected into space by solar flares. Save my name, email, and website in this browser for the next time I comment. Which of the following is true of chlorofluorocarbons? It extends through the troposphere into the stratosphere. D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. Astronomy Hw #19 Flashcards | Quizlet 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. Which of the following is not true of sunspots? A) They all have about the same temperature. According to modern science, approximately how old is the Sun? The sun emits radiant energy composed of, 11. View full document. Large, dark sunspots can persist on the Suns face for periods of days or weeks, though smaller ones tend to appear and vanish much faster. 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. C) The Sun emits light of longer average wavelength. A) nuclear fission C. The depletion is restricted to the arctic and antarctic regions. (a) Determine the energy of the second excited rotational state, with J = 2. c. A) variations in the height of the solar surface structure, origin, temperature. B) hydrogen compounds such as methane. A) send probes to measure the temperature. List at least two ways the sunspot cycle affects us on Earth. a measurement of the surface temperatures of stars. The pressure from high-energy photons and neutrinos at the very, high Sunspots are caused by groups of unbalanced magnetic fields on the suns surface. C. The tropopause serves as a buffer against the pressure exerted by the atmosphere. The energy requirements are much larger than chemical reactions (i.e., fire) so this was then ruled out. *b. They are regions of reduced surface temperature, caused by concentrations of magnetic field flux that inhibit convection. one continuous zone that functions as a whole. *b. A) helioseismological fluctuations. C) The Sun rotates faster at the equator. C) one thousand years ago. Sunspots and Solar Flares | NASA Space Place - NASA Science for Kids What do sunspots, solar prominences, and solar flares all have in common? Why must the Sun's rate of fusion gradually rise over billions of years? will collapse under their own gravity? Which of the following is not one of the reasons for Earth's seasonality? True False 3. A) watts The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. Which of the following best describes why the Sun emits most of its energy in the form of visible light? B However, the energy of this light was released by fusion in the Sun's core about C) small variations in the rate of nuclear energy generation in the solar interior The Sun Is Asleep. Deep 'Solar Minimum' Feared As 2020 - Forbes C) 10,000 years What is the surface temperature of the Sun? D. Nowhere on Earth does day length vary by as much as 24 hours. A) an imbalance in the operation of the solar thermostat A) They are too cold to emit any visible light. E) The rate of nuclear fusion in the Sun peaks about every 11 years. 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? Melt from the subducting plate rises to the surface, erupts through the . The sun has an 11-year cycle of sunspots on its surface. Question: Which one of the following is NOT true? C) the strong force What processes are involved in the sunspot cycle? 13. A) three days ago. Write the Tollens' reagent chemical formula. They exert pressure outward, counterbalancing atmospheric pressure. E) The Sun is generating energy other than by nuclear fusion. D D) 37,000 K. What is the solar wind? E) The term solar neutrino problem refers to the fact that neutrinos are extremely difficult to detect. C) vibrations seen at the solar surface E) 4 H 1 He + energy. Sunspots are often associated with large eruptions on the suns surface known as solar flares. the same mass as the four hydrogen atoms, because any product has, d. It is held up by gas pressure due to the very high temperature, b. A) 5000 AD. What voltage will he encounter on the input side of the transformer? *b. Sunspots are generally cooler than the surrounding photosphere because they are formed from regions of disrupted plasma flow. Galileo's Daughter: A Historical Memoir of Science, Faith, and Love is a book by Dava Sobel published in 1999. At the height of this cycle, known as solar maximum, the Sun's magnetic poles flip. D) nuclear fusion. (C). A) one year ago. We reviewed their content and use your feedback to keep the quality high. We observe the Sun to exhibit a sunspot cycle over a period of 22 years, tied directly to its magnetic activity. You will then reach the source of these photons, the core of the Sun, which is actively involved in nuclear fusion, converting hydrogen into helium and releasing multitudes of photons and neutrinos. 1. A rapidly rotating neutron star, producing beams of radio energy. *b. Air consists of? B) another name for the way sunspots look on the surface of the Sun A) The chromosphere is the source of ultraviolet light, and the corona is the source of X rays. Which of the following is true with respect to the. A) We can probe the interior of the Sun by studying the vibrations in its photosphere. Follow the model. On its way to Earth, solar winds first encounter, The dominant wavelength emitted by Earth is. The source of energy that keeps the Sun shining today is B) The churning gas is being stirred up by the strong solar wind. 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) 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. B) photosphere. your choice on the answer sheet. By what process do nuclear power plants on the Earth generate energy?
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