Solely natural gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. Earth's curvature, which presents varied angles to parallel solar rays. C Therefore, we believe that our models are accurate if they can reproduce the characteristics of the Sun that we can observe. A) at the same temperature and density as the surface. D) The Sun generates energy through fission while nuclear power plants generate energy through fusion. Experts are tested by Chegg as specialists in their subject area. It occurs in large amounts in the atmosphere relative to other gases, such as nitrogen and oxygen. These eruptions can cause problems with satellites, disturb communications and even the electrical grid on earth. D 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. D) there is less fusion occurring there. D. It results from the burning of fossil fuels. C) core, radiation zone, convection zone, photosphere, chromosphere, corona The proton-proton chain is Sunspots are regions on the suns surface that appear darker than their surroundings because they feature slightly cooler temperatures than their surroundings. Solved True or false: The amount of solar activity (like - Chegg method of collecting geologic data. A more modern hypothesis was that the Sun shone through the emission of thermal energy resulting from gravitational contraction, but this could only last for about 25 million years, far less than the age of Earth, before the Sun would have contracted to a point. the nebula caused by the supernova explosion of a massive star. In the late 1800s, Kelvin and Helmholtz suggested that the Sun stayed hot due to gravitational contraction. A) watts Which of the following is not true of sunspots? The "star" appears to wiggle in its path across our sky against, *d.
B. A Suppose you put two protons near each other. D) a few hundred thousand years ago. which of the following is not true of sunspots? Solved Which of the following is NOT a correct statement - Chegg B) They are regions that are significantly cooler than the rest of the photosphere. D) a stream of charged particles flowing outward from the surface of the Sun. luminosity against mass of a group of stars. An ice storm breaks a transmission line and interrupts electric power to a town. No, sunspots do not always occur in pairs. , 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) The Sun becomes much brighter. A. is lost from the atom, and energy is equivalent to mass, c.
C. Day length varies more at the equator than at higher latitudes. These cooler temperatures are caused by strong magnetic fields that inhibit convection, or heat transfer, between the sunspot and the surrounding area. Magnetic fields Day-length decreases from the winter solstice until the vernal equinox, when it begins to increase. D) converting kinetic energy into electricity Which of the following is not true of sunspots? (It's even "on sale"!) A A) Nuclei normally repel because they are all positively charged and can be made to stick only when brought close enough for the strong force to take hold. E. It results from chemical reactions with chlorine derived from CFCs. A. Sunspots have a temperature that is about 1,500C cooler than the temperature of the rest of the suns surface. They are cooler because their strong magnetic fields suppress convection and prevent hotter material from flowing into them. C) elements in the Sun other than hydrogen and helium Fill in a chart like the one shown here to illustrate key aspects of Thomas's voice. B) about 700,000 kilometers (the radius of the Sun) You can do this by:. The training program for muscular endurance should not resemble the activity. two zones that absorb radiation from the Sun. The longest day of the year occurs on the December solstice. 13. C) The Sun emits light of longer average wavelength. Detailed calculations show th at the value of, for the outermost electrons in Si and Cl atoms is 4.29+ and 6.12+, respectively. D) Neutrinos rarely, if ever, interact with your computer. Select only one. an earthbound technique not used in modern satellites. an irregular cycle averaging about 11 years, but sometimes, c.
Which of the following is true of the Sun's electromagnetic spectrum? D Sunspots are surface disturbances caused by magnetic storms. B They are likely carved out by turbidity currents, which occur when sediment-laden water rapidly moves down slope. True False. which of the folloing statements about ionization energy is true? B) remain stationary. B) red B) one hundred years ago. (b) Why does the thickness of the dam increase with depth. on the answer sheet. D) We see many sunspots on the surface of the Sun. c.
B) The churning gas is being stirred up by the strong solar wind. they
Which of the following is true of the ionosphere? D How is the sunspot cycle directly relevant to us here on Earth? Removing Sunspots on Face: Treatment and At-Home Remedies - Healthline D) The rate at which fusion occurs would decrease, leading to an expansion of the core, which would in turn cause the temperature to drop back down. C) radiation and elements such as carbon and nitrogen. to overcome the collapse and stabilize the stellar, d.
It is intrinsically fainter than the Sun. The statement that is not true about solar sunspots is that they are permanent. D) We can study solar neutrinos. (D). companion,
E) attract one another. they are brighter than the rest of the sun's surfaced. B) radioactive decay. C) The brightening and darkening of the Sun that occurs during the sunspot cycle affects plant photosynthesis here on Earth. And the cycle is 11 years, so in the next few years we'll be seeing more sunspots. E) composed of iron. The top of the Earth's atmosphere is approximately. PDF ASTR1102-002 Practice Questions for Exam #2 *c.
D Acid deposition is deposition that measures more than 7.0 on a pH scale. Solar activity causes the responses in the near-Earth space environment that produce changes in the radiation belts, so an understanding of how the Sun changes is directly relevant to space weather. Why do you turn down this excellent offer? they can produce flares and prominencesc. What happens to energy in the Sun's convection zone? are white dwarfs intrinsically so faint? will collapse under their own gravity? How can we best observe the Sun's chromosphere and corona? A) Nuclear fusion in the Sun's core produces visible light photons. Which of the following statements is NOT true about sunspots? c.
D While some sunspots do form with a partner, it is not always the case. C As such, they are transient and not permanent. A the same mass as the four hydrogen atoms, because any product has, d.
3. A geographic information system is a c.
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 . Which of the following best describes what would happen? It results from chemical reactions with chlorine derived from CFCs. 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. Atmospheric pressure increases with altitude and is, therefore, lowest near the Earth's surface. Which of the following best describes where other forms of light are released? A Hint 1. Multiple Choice Which of the following is NOT true about Sunspots? C) detecting solar neutrinos generated in the Sun's core Line spectra C. Light from sunspots D. The star's magnetic field , 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 C) gravitational force and surface tension Solely anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. B. The Sun and Sunspots Astronomy Chapter 9 Quiz B Flashcards | Chegg.com The subsolar point is at the Tropic of Capricorn (23.5 S). The Sun | Earth Sciences Quiz - Quizizz The Montreal Protocol What do sunspots, solar prominences, and solar flares all have in common? more sunspots indicate increased solar radiation. Very hot material orbiting a black hole. The pressure exerted by the atmosphere is not great enough to crush them. D) No one knows: this is the essence of the "solar neutrino problem.". which of the folloing statements about ionization energy is true? The people living at 40 N or S experience about six-hours difference in daylength from winter to summer. These models make predictions about how bright and how big the Sun is, which we can then compare with observations. Yes, sunspots do circulate around the Sun. After observing the Earth's weather patterns and the 11-year sunspot computer-based processing tool for analyzing geographic data. A) There's no such thing as a solar neutrino. It extends through the troposphere into the stratosphere. Which of the following is the best answer to the question, "Why does the Sun shine?" Under these conditions, hydrogen atoms come so close together that they fuse. E. The equator experiences at least six-hours difference in day length from winter to summer. is on the last page, tear it free and turn it in separately. 1. In the center section near to the Sun's position, with lower mass, d.
C) The chromosphere is the source of X rays, and the corona is the source of radio waves. D) the winding of magnetic field lines due to differential rotation Instead he found that the number of sunspots varied with a . E. CO2 is a by-product of life processes. the difference in amount of incoming shortwave and outgoing longwave radiation. A b) Determine how many trucks will be required to complete the job. E) all of the above. A longer lived source that could match the energy requirements is gravitational contraction. The relationship between mass and luminosity of stars on the main. The solar thermostat is analogous to the thermostat at home: it works to maintain a constant temperature. (PDF) Robustness of sunspot equilibria - Academia.edu What happens to the missing matter? They are distributed approximately uniformly over the Sun's surface both in position and in time. 1). B) "sunquakes" are caused by similar processes that create earthquakes on Earth. What would happen to the core of the sun if its temperature rose slightly? Sunspots are dark, cooler areas of the solar surface that appear darker when compared to the rest of the surface due to the intense magnetic fields surrounding them. A) about 1023 Sun - History of observation | Britannica C) corona. B Modelo A Mara (le-les) encantan las pelculas romnticas. They are magnetic storms. How much mass does the Sun lose through nuclear fusion per second? core temperatures reached at this stage of development is. system and radically alter the evolution and behavior of the, a. 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. 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. C) holes in the corona of the Sun that allow us to see the photosphere A) Energy is produced in the convection zone by thermal radiation. 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. atoms into one helium atom. During their rotation, the sunspots break up, regroup, and re-form in different configurations, as well as drift across the Suns surface. The Sun will exhaust its nuclear fuel in about Air consists of? Which statement best describes what was called the solar neutrino problem? neutron star, black hole, white dwarf, 29. A) hydrogen compounds. C which of the following is not true of sunspots? which of the following Which of the following is NOT a correct statement about sunspots? is
B) 5 million years. in your Student ID# and the FORM NUMBER of your, exam
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. Three criteria used for classification of the atmosphere are B) The chromosphere is the source of infrared light, and the corona is the source of ultraviolet light. The fundamental nuclear reaction occurring in the core of the Sun is 1) In the late 1800s, Kelvin and Helmholtz suggested that the Sun stayed hot thanks to gravitational contraction. B At the time the hypothesis was suggested, what major problem was identified with the idea that the Sun was powered by gravitational contraction? Which of the following best describes air pollution? ________ refers to changes in daylength and the Sun's altitude over the course of the year. Space scientists study these to see how they perturb Earth's magnetic fields and affect satellites circling around Earth, but . Why are neutrinos so difficult to detect? D) repel each other. 3. a heavy, uncharged nuclear particle, easily detected. Photographs reveal that most of them have atmospheres much like that of Jupiter. What is the only force that can overcome the repulsion between two positively charged nuclei to bind them into an atomic nucleus? has a charge of +2. B) use hot gas to create a small Sun in a laboratory. B) We did not know how to detect neutrinos. Briefly describe the phenomena of the sunspot cycle. Solar sunspots are temporary features on the photosphere of the Sun that appear visibly as dark spots compared to surrounding regions. A) They are too cold to emit any visible light. A) The Sun generates energy by fusing small nuclei into larger ones, while our power plants generate energy by the fission (splitting) of large nuclei. They are caused by intense magnetic fields that disrupt the flow of plasma, which is a superheated, electrically charged state of matter formed from the gases of the Sun. a.
sunspots are surface disturbances caused by magnetic storms. D) No one understood how it could be possible for neutrinos to be produced in the Sun. a. 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. Which of the following best describes why the Sun emits most of its energy in the form of visible light? Galileo's Observations of the Moon, Jupiter, Venus and the Sun How nuclear fusion turns hydrogen to helium b. are extremely red-shifted, hence they appear faint at. Use
Galileo turned his gaze toward Venus, the brightest celestial object in the sky - other than the Sun and the Moon. How can we measure the strength of magnetic fields on the Sun? produces industrial smog. They are distributed approximately uniformly over the Sun's surface both in position and in time. a verification of the Doppler equation for wavelength shift of. young
Which of the following is an example of humans influencing solar energy or seasonality? By what process does the Sun generate energy? 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. Hundreds of lakes are incapable of supporting life due to high acidity. answer choices. A) 4 tons What is the solution to the solar neutrino problem? a very small asteroidlike body orbiting the Sun. Which of the following choices is not a way by which we can study the inside of the Sun? 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? The heating of the localized areas of the atmosphere of one star. Which of the following statements about solar sunspots is NOT true? d.
C Sunspots can be up to 12 times larger than Earth. A magnet is an item with magnetic qualities. E. The equator always receives equal hours of day and night. A 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? If the solar core were to increase in temperature, the nuclear fusion rate would soar, generating excess energy that increases the pressure and pushes the core outwards. Therefore, scientists predict that neutrinos should come from the Sun if fusion is occurring in its core. The Sun Is Asleep. Deep 'Solar Minimum' Feared As 2020 - Forbes C) hotter and denser than the surface. 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. 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). B) Solar neutrinos are generated by solar winds, but we're in a solar minimum now, so the risk of damage is very low. A. A) 1,000,000 K. The Sun is a relatively young star, near the beginning of its life. The top of the Earth's atmosphere is approximately This inhibition of convection causes the temperature of the sunspot to reduce, making it much cooler than its surroundings. A) one year ago. What is the evidence for the heliocentric model (sun is the center of D) They actually are fairly bright, but appear dark against the even brighter background of the surrounding photosphere. A All radio signals pass through this region virtually unaffected. (a) Dete One way to track the solar cycle is by counting the number of sunspots. C) They are holes in the solar surface through which we can see to deeper, darker layers of the Sun. a. C) The Sun's entire magnetic field flip-flops at the end of each cycle (at solar minimum). D) convection zone AST 101: Midterm 2 Solutions While the quality of observations was good, consistent observation was lacking. finally
The highest temperatures in the atmosphere occur in the. D 4. If the Sun's core suddenly shrank a little bit, what would happen in the Sun? The helium produced from the fusion of hydrogen has less mass than the hydrogen that goes into its formation. method of calculating distance on a map. Which of the following is not true about solar flares - Course Hero B) 5,800 K. Earth represents an open system in terms of energy. Sunspots appear darker than the surrounding area because the magnetic field reduces the temperature at the location of the sunspot. A star's lifetime does not depend on its mass. View full document. C) Like all objects, the Sun emits thermal radiation with a spectrum that depends on its temperature, and the Sun's surface temperature is just right for emitting mostly visible light. Theories predict how many and what type of neutrinos should be observed. B) observing X-ray images of the solar interior using satellites B Although the Sun does not generate energy by gravitational contraction today, this energy-generation mechanism was important when the Sun was forming. B) 600 tons - In this case, circle the word le. A. the revolution of Earth around the Sun The interaction between the magnetic fields and the solar plasma can cause sunspots to become unstable, leading to flares, prominences, and other solar eruptions. Why does the Sun emit neutrinos? B) We can make a computer model of the Sun's interior that allow us to predict the observable properties of the Sun. This means either that our models of the Sun are not completely correct or that we don't understand neutrinos as well as we thought we did. Question 6 which of the following apply to quasars - Course Hero C) extremely hot plasma flowing along magnetic field lines. TrueFalse. sulfur oxides and nitrogen oxides E) Sunspots can produce flares and prominences. The distance between corresponding points on any two successive waves is known as the. 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 A It primarily absorbs harmful infrared wavelengths. is considered beneficial because of the production of O3. They increase and decrease in number, relatively regularly. D. Air pressure at sea level is approximately 1013.2 mb. Which is the strongest of the fundamental forces in the universe? A) 5000 AD. A) Contracting objects cool down rather than heat up. Which statement best describes the solar neutrino problem? stratus cirrus altocumulus cumulus nimbostratus 27) Which of the following is false regarding air masses? Because of the electromagnetic force, the two protons will Sunspots are cooler areas on the sun's surface that are relatively darker than the surrounding surface and are caused by intense concentration of magnetic fields. B. Sunspot occurrence has a regular cycle, with an average of 11 years between maximums. Save my name, email, and website in this browser for the next time I comment. C sunspots are surface disturbances caused by magnetic storms. 2. D. Nowhere on Earth does day length vary by as much as 24 hours.
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