which of the following is not true of sunspots

C. potassiumhas a lower ionizationenergy than sodium D. d. A) the bubbling pattern on the photosphere produced by the underlying convection Nuclear power plants on Earth create energy in the same way as the Sun. C) by observing auroras here on Earth D. Nowhere on Earth does day length vary by as much as 24 hours. D) the Coriolis force They vary in number on an 11 year cycle. Finally, we can test our knowledge of nuclear physics and the fusion process in the core using observations of solar neutrinos. Which of the following is true regarding the depletion of ozone in the ozonosphere? If an electric hair dryer uses 2,400 J of" energy in 2 s, what is its power? We also use observations of vibrations on the Sun to learn about its interior structure in much the same way we use seismic testing on Earth. , A new embankment, when completed will occupy a net volume of 257,000cy. B. ionization energy is the amount of energy used to add an electron to an atom. Only about 1/3 of the expected number of neutrinos is observed. . 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) chemical reactions How do we know how old the solar system is quizlet. The neutrinos are about twice as energetic on average than is. The light radiated from the Sun's surface reaches Earth in about 8 minutes. Submarine canyons are deep valleys at passive continental boundaries. Why do sunspots appear dark in pictures of the Sun? They are likely carved out by turbidity currents, which occur when sediment-laden water rapidly moves down slope. The Sun formed from a cloud of gas. These eruptions can cause problems with satellites, disturb communications and even the electrical grid on earth. C a. D) The core would heat up, fusion rates would increase, and the core would re-expand. d. aims to reduce and eliminate all ozone depleting substances. C A) The Sun's mass is about 300 times the mass of Earth. B) This process would power the Sun for only about 25 million years, but geologists already had evidence the Earth was much older than that. B) We did not know how to detect neutrinos. E) all of the above. Electrostatic forces between the highly charged iron nuclei are, sufficient B) strong magnetic fields slow convection and prevent hot plasma from entering the region. in the rarified space between galaxies. Which is the strongest of the fundamental forces in the universe? E) The mass of a neutrino is 30 percent of the mass of an electron. Which of the following types of stars or stellar remnants can have a, mass they can produce flares and prominencesc. Satellites in low-Earth orbits are more likely to crash to Earth when the sunspot cycle is near solar maximum because What is granulation in the Sun? Iron nuclei are so large that they occupy all remaining space and, c. As it contracted, its gravitational potential energy was converted to thermal energy. D) The Sun always has the same amount of mass, creating the same gravitational force. Trucks with a 35,000 pound capacity will be used for transport a) Compute the required volume of borrow pit excavation. star, within which planets will eventually form. D) Nothing; this is an artist's rendering of the sun. B. B Sunspots are brighter than the rest of the Sun's surface. Hydrogen fusion in the Sun requires a temperature (in Kelvin) of. (A), Based on temperature, the atmosphere is divided into. C. They can be larger in diameter than Earth. gases in the convective zone. C) sun spots The fundamental nuclear reaction occurring in the core of the Sun is B) The visible light comes from energy level transitions as electrons in the Sun's hydrogen atoms jump between level 1 and level 2. B B) repel one another. What happens to the positron? rmine the net force on the dam. 3. C) It is rapidly converted to energy when it meets an ordinary electron, resulting in matter-antimatter annihilation. B) gravitational contraction. The core of the Sun is C A) about 1023 B) 100% hydrogen and helium We can measure the luminosity that the Sun is producing and therefore determine how much fusion must be going on in its core. Why does the Sun emit neutrinos? 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? D) The Sun gets heavier as it gets older, and the stronger inward pull of gravity increases the fusion rate. E) several hundred years ago. C) The Sun's entire magnetic field flip-flops at the end of each cycle (at solar minimum). At the time the hypothesis was suggested, what major problem was identified with the idea that the Sun was powered by gravitational contraction? C B) 5 million years. begins to evolve toward the red giant phase? known E) neutrinos from the solar core reach the solar surface easily. These heated the interior enough to allow gravitational contraction and nuclear fusion to occur. D) Energy is produced in the convection zone by nuclear fusion. additional Lower-mass stars run through their lives faster and have shorter. New resources and matter are being added to Earth's systems all the time. *c. They occur in regions of lower-than-average magnetic fields. Today, it far exceeds its natural range of 180 to 300 ppm. C) The Sun emits light of longer average wavelength. C) The Sun initially began making energy through chemical reactions. For observers in the Northern Hemisphere, which of the following is true? B) several hundred thousand years ago. Question there were no dark energy, the expansion of the universe would be: constant accelerating decelerating . (B), Which of the following is not a reason for the seasons? Day-length decreases from the winter solstice until the vernal equinox, when it begins to increase. They are cooler than the surrounding photosphere of the Sun. from single stars, is that it provides, a. E) The term solar neutrino problem refers to the fact that neutrinos are extremely difficult to detect. A Cepheid variable star with a period of a few days. D none of the above Advertisement vblitesgkohrrssuovt B I think but not sure E) lumps of denser material in the Sun, What are coronal holes? A) an imbalance in the operation of the solar thermostat The poles have the smallest variation in summer and winter day lengths. Which of the following best describes where other forms of light are released? A) three days ago. What problem have observers of solar neutrinos run into? The spots are dark because the magnetic activity of these regions is so intense that it suppresses convection (the transfer of heat energy to the surface). How is the energy difference equalized? The Sun continued to contract until the core became hot enough to sustain nuclear fusion. D C) chromosphere C Sunspots can be up to 12 times larger than Earth. Sunspots are dark spots that appear on the surface of the sun and typically live for days to weeks. more mass than the four hydrogen atoms, because energy is. sulfur oxides and ozone B Which of the following statements is NOT true for sunspots? correlated equilibria) and extrinsic uncertainty in market economies (e.g. C) radiation and elements like carbon and nitrogen. A. A. C. The region principally absorbs gamma rays, X-rays, and interacts with the solar wind. A computer accessory salesman attempts to convince you to purchase a "solar neutrino" shield for your new computer. C) The Sun's mass is about 300,000 times the mass of Earth. B) It is physically impossible to generate heat simply by making a star shrink in size. Tree rings show the history of drought, fire, and other environmental variations. b. They are distributed approximately uniformly over the Sun's surface both in position and in time. C) Not all fusion reactions create neutrinos. A) 4 tons Use no larger than about 1.4 times the mass of the Sun, otherwise. the Sun and energy output per unit area of a star depends on the, 4th A D) a stream of charged particles flowing outward from the surface of the Sun. 31)Option - C is . B contains hot B-type stars on the main sequence and cooler G- and, K-type During the cycle, the amount of activity in the sunspot region increases and decreases. white dwarf, neutron star, black hole, d. the movement of gases in the corona. At the height of this cycle, known as solar maximum, the Sun's magnetic poles flip. C B A. a. they can be several times larger than earthb. D) areas in the corona that allow us to see through to the photosphere D) They all occur only in the Sun's photosphere. produces industrial smog. B) the linkage of numerous protons into long chains. d. They exert pressure outward, counterbalancing atmospheric pressure. Despite their dark appearance, sunspots do not detract from the amount of energy being produced by the sun, meaning that they do not have an effect on the Earths temperature. E) any temperature, as long as gravity is strong enough. E) The sunspot cycle is the cause of global warming. does not work beyond the silicon fusion cycle that produces, *a. . 3. What is the surface temperature of the Sun? 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? Solely natural gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. D) The magnetic polarity of the Sun reverses approximately every 11 years. This is because large magnetic fields are concentrated in these areas, inhibiting convection and cooling the surface. B) nuclear fusion Main sequence stars White dwarfs Red dwarfs Red giant stars Sun-like stars QUESTION 31 Which of the following statements about sunspots is NOT true? C) The rate of nuclear fusion in the Sun peaks about every 11 years. Why do you turn down this excellent offer? D) because they rarely interact with matter a very small asteroidlike body orbiting the Sun. C) Fusion reactions in the Sun have ceased. B 28. The intricate patterns visible in an X-ray image of the Sun generally show 10. 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. Which of the following sequences is arranged in order from shorter wavelength to longer wavelength? evolution, in order of increasing mass? a subjective determination of temperature. We also provide a link between extrinsic uncertainty arising in games (e.g. The longest day of the year occurs on the December solstice. A B This low density in turn causes the Suns energy to be absorbed unevenly, creating areas on the surface that are cooler than their surroundings. B) Energy is transported outward by the rising of hot plasma and sinking of cooler plasma. Which of the following statements about the sunspot cycle is not true? B) Earth's upper atmosphere tends to expand during solar maximum, exerting drag on satellites in low orbits. The corona is even shaped differently, streaming more from the sides of the Sun instead of forming a more spherical shape around the Sun, as when the magnetic field is weaker. c) Determine how many gallons of water will need to be added to each truck. D an extremely regular build-up and decay of the number of. Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. primarily oxygen and several trace gases, such as carbon dioxide. Greenhouse gases are by far the largest contributor to modern global warming. 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. D) The Sun initially began generating energy through nuclear fusion as it formed, but today it generates energy primarily through the sunspot cycle. B. Chlorine freed from CFCs only remain in the atmosphere for several days, on average. old, because the G and K stars are already evolving off (away, c. B They tend to cluster at high solar latitudes. A) thousands of degrees. Which of the following sequences of stellar spectral classifications. Two of the protons are converted into neutrinos. another name for an electron that carries a positive charge. A occasionally x rays and 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. A) nuclear fission. Which of the following radioactive isotopes is used to date very recent events? 33. D A) nuclear fission. B They are regions of reduced surface temperature, caused by concentrations of magnetic field flux that inhibit convection. 1,000 km (621 mi) above the Earth's surface. The CFC molecules react with ultraviolet light to release fluorine which then destroys ozone. sunspots can produce flares and prominences. The borrow material that will be used to construct this fill is stiff clay. A) Nuclear fusion in the Sun's core produces visible light photons. Sunspots are most prevalent in an 11-year cycle; the number of sunspots peaks about every 11 years. A B. Three criteria used for classification of the atmosphere are Why are neutrinos so difficult to detect? D) Neutrinos rarely, if ever, interact with your computer. E. Atmospheric pressure is greatest in the mesosphere. Not only is Earth suddenly spinning faste r, but our Sun is getting more active than NASA predicted. 3,200 km (1,988 mi) above the Earth's surface. C Sunspots occur in a regular cycle, with the number of sunspots occurring in any given year peaking and waning. Course Hero is not sponsored or endorsed by any college or university. D) tunnels in the outer layers of the Sun through which photons can escape more quickly than through the radiation zone The remaining 4 million tons of mass is In the center section near to the Sun's position, with lower mass, d. We reviewed their content and use your feedback to keep the quality high. Which of the following is an example of humans influencing solar energy or seasonality? The sun has an 11-year cycle of sunspots on its surface. An ice storm breaks a transmission line and interrupts electric power to a town. A) Fusion gradually decreases the number of independent particles in the core, allowing gravity to compress and heat the core, which in turn increases the fusion rate and the Sun's luminosity. Which of the following is NOT true about the differences between vector data model and raster data model?. B) We can make a computer model of the Sun's interior that allow us to predict the observable properties of the Sun. A "star" image separates into two distinct images periodically, c. It is held up by gas pressure due to the very high temperature, b. C composition, temperature, and function. E) composed of iron. The ozonosphere is critical to life because it? C) The core would heat up, causing it to radiate so much energy that it would shrink even more. Question 4 options: They are holes where we can see into the the interior of the Sun. The main cause of sunspots is the suns magnetic field. ANS: The length of the sunspot cycle is 11 years. D) We are seeing hot gas rising and cool gas falling due to the convection that occurs beneath the surface. C) They have no mass. B) ten years ago. Modelo A Mara (le-les) encantan las pelculas romnticas. What is the common cause of sunspots, flares, and prominences? Which of the following statements is NOT true for sunspots? Our Sun will end its life by becoming. A mi padre y a m (nos-te) importan los actores de Hollywood. A) The Sun maintains a steady temperature. *b. d. B) radioactive decay. C) because they move at nearly the speed of light B. ionization energy is the amount of energy used to add an electron to an atom. 8. Hundreds of lakes are incapable of supporting life due to high acidity. C. The depletion is restricted to the arctic and antarctic regions. absorbs most ultraviolet wavelengths. Sunspots are often associated with large eruptions on the suns surface known as solar flares. E) attract one another. B) The chromosphere is the source of infrared light, and the corona is the source of ultraviolet light. Why does the surface of the Sun appear to have a sharp edge? The Sun's surface seethes and churns with a bubbling pattern. The Sun will exhaust its nuclear fuel in about What is the solution to the solar neutrino problem? A) There's no such thing as a solar neutrino. D) a large change in the amount of visible light emitted by the Sun The pressure exerted by the atmosphere is not great enough to crush them.

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