Processes of Nature —Solar and Lunar Eclipses Day and Night and their variation. 106) A pulsar is actually a: Answer: (a) Answer: (c) Of the very small percentage of the universe that is made up of baryonic material, the most abundant element is hydrogen. Depending upon the age and mass of a star, the energy may come from proton-proton fusion, helium fusion, or the carbon cycle. The Law of Areas: A line that connects a planet to the sun sweeps out equal areas in equal times. 146) The resolving power of a telescope depends on the: Chemistry refers to different materials, and physical properties refers to such things as whether the materials are solids or liquids, etc. iii) A long tails of dust and gases that escape from … Bigbang Theory: Minerals. Answer: (b) Powered by Team CSS Times. (c) green (d) red Shortly after the First Servicing Mission successfully corrected the spherical aberrationin Hubble’s mirror a team led by European astronomer Peter Jakobsen investigated the nature of the gaseous matter that fills the vast volume of intergalactic space. (b) Parallax Composition of the Sun’s Atmosphere. (c) red giant Answer: (c) (b) the middle of the tube Composition of the Sun’s Atmosphere. (a) orange (b) violet (a) size 104) A planet is said to be at aphelion when it is: 119) A device which would not work on the Moon is: 121) In a reflecting telescope where in the tube is the objective mirror placed? (a) change from night to day. (a) Earth (b) Nitrogen 126) Accretion is: Use data to draw conclusions about the major components of the universe 0607.6.1 Links verified 7/25/2014. Earth has the highest density of any planet in the Solar System, at 5.514 g/cm3. In many cases, the data obtained from different missions are complementary, and are CSS | Syllabus | Past Papers | Solved Papers | Preparation ... Time Allowed: 3 hours. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind. In short, the conventional picture of a universe with numbers of elementary particles, controlled and mediated by a set of force fields, is not really an accurate picture of the universe, given our present-day known structure of physical laws (quantum field theory and general relativity). (b) Mars and Venus 139) A coordinate system based on the ecliptic system is especially useful for the studies of The universe is composed almost completely of dark energy, dark matter, and ordinary matter. (b) meteors The Origin and Structure of the Universe What is the Universe made of ? Origin of Universe Theories: 1. (b) galaxy Energy :- sources and resources of Energy Energy conservation. The change in the axis location changes the dates of perihelion (closest distance from sun) and aphelion (farthest distance from sun), and this increases the seasonal contrast in one hemisphere while decreasing it in the other hemisphere ( Kaufman, 2002). in their interiors thermal energy kT is much smaller then Fermi energy Ep. Solar system, Sun, Earth. The Universe in four dimensions. Earth). The Origin and Structure of the Universe What is the Universe made of ? (d) the disintegration of matter. Whereas, the standard theory of big bang … According to the latest observational evidence, ordinary matter, including stars, planets, dust and gas, only make up a tiny fraction of the universe (5%). 105) The word Albedo refers to which of the following? (c) change in orientation of the Earth’s axis. A) Big icy particles of hail of diameter 4.5 cm (a), 5 cm (b), and 5 cm (c). (b) The Andromeda Galaxy (d) the moon’s magnetic poles keep aligned with the Earth’s magnetic field. It is invisible to the naked eye because of its extreme distance from Earth. (a) they have open orbits (a) Earth Mental Abilities Scales that measures specific constructs such as verbal, mechanical, numerical and social ability. Choosing how to structure our CSS components. These are what make up the Web Components specification. (d) Mercury (a) Mars currently, the Earth is closest to the sun in the northern hemisphere winter, which makes the winters there less severe (Thomas, 2002). Universe: The totality of everything that exists or is known to exist is called universe. This hypothetical type of energy, called dark energy, makes up 70 percent of the universe. (a) at the center of the Universe. By the end of this course you’ll be able to describe the structure and functionality of the world wide web, create dynamic web pages using a combination of HTML, CSS, and JavaScript, apply essential programming language concepts when creating HTML forms, select an appropriate web hosting service, and publish your webpages for the world to see. 90% Hydrogen, 10% Nitrogen (b). (d) 86 years This article is genuinely for candidates appearing in CSS Exam. Is it: The Egyptians appear to have been the first to develop a solar calendar, using as a fixed point the annual sunrise reappearance of the Dog Star — Sirius, or Sothis — in the eastern sky, which coincided with the annual flooding of the Nile River. (d) water The mantle is hot and represents about 68 percent of Earth’s mass. In the twelfth article of our Basics of Astrophysics series, we shall discuss the composition and structure of the Sun. (c) The Sagittarius Constellation Earth’s atmosphere not only contains the air that we breathe but also protects it from the blasts of meteors that are constantly being hurtled towards it. However, even places far from stars and planets contain scattered particles of dust or a few hydrogen atoms per cubic centimeter. (b) 66 years (b) The amount of light a planet reflects Tour the universe from the Big Bang to planet Earth in this SPACE.com infographic series. Sixty-eight percent of the total universe is an incredible amount of energy to have out there expanding an already massive universe. Answer: (b) energy is the source of the energy needed to keep the universe expanding. what is preposition? (a) 300 (b) 1,000 Answer: (b) (c) Neptune 123) What causes the gas tail of a comet to always point away from the sun? The corona is the outermost layer of the Sun, starting at about 1300 miles (2100 km) above the solar surface (the photosphere) The temperature in the corona is 500,000 K (900,000 degrees F, 500,000 degrees C) or more, up to a few million K. The corona cannot be seen with the naked eye except during a total solar eclipse, or with the use of a coronagraph. Lunar eclipses are more widely visible because Earth casts a much larger shadow on the Moon during a lunar eclipse than the Moon casts on Earth during a solar eclipse. (d) Tycho Brahe The Cosmological Evolution Survey (COSMOS) is an astronomical survey designed to probe the formation and evolution of galaxies as a function of both cosmic time (redshift) and the local galaxy environment. It is not at all easy for many reasons, and not only because of the difficulty of simplifying things for non-specialists without leaving any loose ends that we take for granted. (c) the process of matter accumulation due to centripetal force. 144) What is the HOTTEST region of the sun? Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and benefit all humankind. 129) The Crab Nebula consists of the remnants of a supernova which was observed by: COMPOSITION OF THE UNIVERSE In the case that lower-energy hydrogen, hydrinos, comprises the dark matter, all matter is ordinary (baryonic) matter, and the mass of the Universe is sufficient for it to be closed [30, 31]. (c) centrifugal force 115) What is the motion called when a planet seems to be moving westward in the sky? 142) What is the most distant object in the sky that the human eye can see without optical instruments? (d) star cluster It is the magnificent being around which the Earth and other planets revolve. (d) spring balance Solar system, Sun, Earth. Key Components of a Universe. In June 2016, NASA and ESA scientists reported that the universe was found to be expanding 5% to 9% faster than thought earlier, based on studies using the Hubble Space Telescope 3) The atmosphere of moon consists of: (CSS 2013) (a). Structure and Composition of the Earth’s Atmosphere Earth is the only planet in the solar system with an atmosphere that can sustain life as we know it. The planets closer to the sun than the earth are called inferior planets. Answer: (b) Although its size is hard to comprehend, investigating its structure and composition gives us a better understanding of its primary building blocks. Quasars: In the 1930’s, Edwin Hubble discovered that all galaxies have a positive redshift. 145) The same side of the moon always faces the Earth because: 146) The resolving power of a telescope depends on the: 147) On a clear, dark, moonless night, approximately how many stars can be seen with the naked eye? Answer: (b), 119) A device which would not work on the Moon is: As the diameter of the telescope’s objective increases, the resolving power increases. (b) blue star. (a) the gradual accumulation of matter in one location usually due to gravity. Earth). HTML templates. NASA.gov brings you the latest images, videos and news from America's space agency. Twenty-three percent of the universe is made up of dark matter. (d) Distance Science Restated: Physics and Chemistry for the Non-Scientist 1970, Forensic Science Fundamentals & Investigation 2008, Harm J. de Blij, Peter O. Muller, James E. Burt, Joseph A. Mason, Physical Geography-Science and Systems of the Human Environment 2009, Introduction to Information Technology 2005, Michael L. McKinney, Robert Schoch and Logan Yonavjak, William P. Cunningham, Barbara Woodworth Saigo. (a) Brahe in 1572. Let’s begin by asking what the solar atmosphere is made of. 136) A star like object with a very large red shift is a, 137) The apparent magnitude of an object in the sky describes its, 139) A coordinate system based on the ecliptic system is especially useful for the studies of. 103) The LAST manned moon flight was made in what year? and nobody has a very good idea of what that is. Our present understanding of the universe's composition is roughly as follows: Baryonic Matter: ~5% of the mass in the universe This is ordinary matter composed of protons, neutrons, and electrons. (a) the eclipse path. Comet Halley was visible in 1910 and again in 1986. Answer: (b). SCSS: SCSS or SASS is a CSS pre-processor and gives you extra functionalities to work with CSS. There is also energy that can be measured; interestingly, there's also the so-called "dark energy." Elongation is measured from earth as the angle between the sun and the planet. (d) distance (d) fixed star. (a) nebula The general structure of the Universe is formed by huge empty spaces (similar to bubbles) separated by filaments of matter (galaxies). For example, Earth is 1 au from the Sun, and Mars is 1.523 AU. 133) Which of the following has the highest density? (d) at it’s lowest point below the ecliptic (a) Planets In fact, the situation is significantly more indistinct and unsettled than most realize. 137) The apparent magnitude of an object in the sky describes its (d) Reverse parallax (d) solstice. hs.src = ('//s10.histats.com/js15_as.js'); The composition of the universe The universe is made up of: * Ordinary visible matter (stars, planets & hot intergalactic gas): 0.4%. 134) Which of the following planets is NOT a terrestrial planet? 125) Of the following, which is the only planet which CANNOT be seen with the unaided eye? Precession is the change in orientation of the Earth’s rotational axis. Halley’s Comet orbits the Sun every 76.0 years and has an orbital eccentricity of 0.97. Answer: (b) (d) none of these 134) Which of the following planets is NOT a terrestrial planet? (b) Copernicus Our universe is vast and getting larger every day, but humanity's understanding of the cosmos is growing too. Answer: (b). And the work of searching only reveals how much more we have left to learn. The precession cycle takes about 19,000 – 23,000 years. Answer: (b) Elongation is the angular distance between the sun, and another object such a moon or a planet as seen from earth. (a) The wobbling motion of a planet Answer: (c) In addition, the combination of Earth’s size, mass and density also results in a surface gravity of 9.8 m/s². The Composition of the Universe . (a) oxygen White dwarfs are stars supported by pressure of degenerate electron gas. (b) Neptune It is the planets, galaxies, gas clouds, and clusters. What was the origin of structure ? ... General Science CSS Past Paper 2017 in pdf download online: 103) The LAST manned moon flight was made in what year? The planets farther away from the sun than earth are called superior planets. (a) Pallas. 143) Which civilization developed and implemented the first solar calendar? Answer: (c). (a) 56 years … Siphons will not work in the International Space Station where there is air but no gravity, but neither will they work on the Moon where there is gravity but no air, 120) Of the following colors, which is bent least in passing through aprism? Albedo is a measure of the reflectivity of a surface. (c) the Chinese in 1054 A.D. (d) The Aurora Borealis Core, mantle, and crust are divisions based on composition. Does it mean. Another consequence of precession is a shift in the celestial poles. 136) A star like object with a very large red shift is a How have present structures arisen ?-- the dimensionality of space-time -- the standard model of particle physics -- the periodic table/element abundances The totality of everything that exists or is known to exist is called universe. Answer: (d), 123) What causes the gas tail of a comet to always point away from the sun? The CSS Point is the Pakistan 1st Free Online (b) nuclear fusion (b) the moon’s motion was fixed at its creation by the laws of inertia. (b) White Dwarf About 73% of the Sun’s mass is hydrogen, and another 25% is helium. The declaration block contains one or more declarations separated by semicolons. Earth’s atmosphere not only contains the air that we breathe but also protects it from the blasts of meteors that are constantly being hurtled towards it. (b) elongation. The branch of science that deals with the study of universe is called cosmology. The atmosphere of Mars is about 100 times thinner than Earth’s, and it is 95 percent carbon dioxide. 101) Which type of star is maintained by the pressure of an electron gas? (c) diurnal. (a) Tomography Chapter 1: A New Map of All the Particles and Forces. _Hasync.push(['Histats.fasi', '1']); All those planets found within the Inner Solar System – Mercury, Venus, Earth and Mars – are examples of terrestrial planets. The different names of these angles depend on the status, inferior or superior, of the planet. (b) cystoscopy 135) Why do we see lunar eclipses much more often than solar eclipses? (a) black hole (a) Carbon dioxide Given models, illustrations, and diagrams, students will describe components of the universe, including stars (including the description of the Sun and its properties), nebulae, and galaxies, and use models such as the Hertzsprung-Russell diagram for classification. (b) Magnification (d) Trojan. 145) The same side of the moon always faces the Earth because: parts of speech english. Although its size is hard to comprehend, investigating its structure and composition gives us a better understanding of its primary building blocks. (b) Stars The Andromeda Galaxy (M31) is the closest large galaxy to the Milky Way and is one of a few galaxies that can be seen unaided from the Earth. The Composition of the Universe . Part-I (General Science) 60 Marks. The ice giant Neptune was the first planet located through mathematical predictions rather than through regular observations of the sky. Let’s begin by asking what the solar atmosphere is made of. The term terrestrial planet is derived from the Latin “Terra” (i.e. Our universe is vast and getting larger every day, but humanity's understanding of the cosmos is growing too. (b) Juno. (a) Alexander the Great famous proverbs of english. Answer: (c) i.e. Answer: (b) (a) solar wind 111) The comet known as Halley’s Comet has an average period of: Since it’s such a large and mysterious part of our universe, it’s no surprise that scientists have a variety of explanations for dark energy. (c) caused by the reflection of polar snow. (d) nuclear fission Answer: (d). You can abbreviate astronomical unit as AU. what is noun? (b) billions of tiny solid particles A meteorite is a solid piece of debris from an object, such as a comet, asteroid, or meteoroid, that originates in outer space and survives its passage through the Earth’s atmosphere and impact with the Earth’s surface. (b) Lunar eclipses last longer than solar eclipses. 141) What process produces a star’s energy? Answer: (b). 104) A planet is said to be at aphelion when it is: This video will provide you an understanding of the structure and composition of the universe. (c) Mars (d) Saturn (b) air pressure That’s much easier than saying that Mars is 227,939,000 km away from the Sun. The Crab Nebula, the result of a supernova noted by Earth-bound chroniclers in 1054 A.D., is filled with mysterious filaments that are are not only tremendously complex, but appear to have less mass than expelled in the original supernova and a higher speed than expected from a free explosion. What laws govern its evolution ? and nobody has a very good idea of what that is. NASA.gov brings you the latest images, videos and news from America's space agency. 133) Which of the following has the highest density? The last manned landing Apollo 17 on the Moon to date, which took place on December 11, 1972, was made by Commander Eugene Cernan and lunar module pilot Harrison Schmitt who was also the first scientist on the Moon. (d) gravity The Crab Pulsar rotates about 30 times each second. They can wax and wane in response to incoming energy from the sun, sometimes swelling up enough to expose satellites in low-Earth orbit to damaging radiation. (b) charged particles trapped in the Earth’s magnetic field. (d) the sun is far from the foci of their orbits (c) Brightness Process of Nature: – Solar and Lunar Eclipses, Rotation and Revolution, Weather Variables (Global Temperature, Pressure, Circulation, Precipitation, Humidity) and Weather Variations. In a reflecting telescope, the objective is the telescope’s primary mirror. Overview • Structure of Universe • Models explaining Universe • Observed Universe -Observational Overview -Solar System -Laws of Physics • Non-Observed Universe (Dark matter and … (a) the moon is not rotating about its axis. The Big Bang theory is the model describes how the universe expanded from a very high-density and high-temperature state,and offers a comprehensive explanation for a broad range of phenomena which including the abundance of light elements, the cosmic microwave background (CMB), Hubble’s law and large scale structure. (a) meteorites (c) the bottom of the tube (d) Carbon monoxide ... General Science CSS Past Paper 2017 in pdf download online: The enormous luminous energy of the stars comes from nuclear fusion processes in their centers. Kepler’s laws were derived for orbits around the sun, but they apply to satellite orbits as well. Answer: (d), 121) In a reflecting telescope where in the tube is the objective mirror placed? (c) 1212 (d) 1743 In a Schmidt-Cassegrain telescope, the objective is also the primary mirror. Daily Dose ... Nicolaus Copernicus was a Renaissance mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center of the universe. (a) angle of inclination. In the Doppler effect for visible light, the frequency is shifted toward the blue end of the spectrum when the light source (such as a star) is approaching. Answer: (c) What was the origin of structure ? 138) The Van Allen belts are: It turns out that the Sun contains the same elements as Earth but not in the same proportions. The following are the key components of Universe − Connection to a database and connection parameters to fetch data. (c) neutron beta decay Answer: (c) The Universe is vast. (a) hydrogen and oxygen combustion About 73% of the Sun’s mass is hydrogen, and another 25% is helium. Answer: (d), 107) Astronomers use Cepheid’s principally as measures of what? This is defined in the Living Standard DOM specification. 132) The angular distance between a planet and the Sun, as viewed from the Earth, is called (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(hs); 131) On the celestial sphere, the annual path of the Sun is called (a) the top to the tube Answer: (c) The cartwheel-like structures at different length scales are presented. })(); Copyright © 2019. Sometimes the apparent relative position of a planet in relation to the sun is called the aspect, or configuration, of a planet. Some of the worksheets for this concept are The universe work, Unit 2 resources composition of earth, The origin and structure of the universe, Our place in our galaxy, A n i n t r o d u c t i o n, Unit earth and space science the structure of the cosmos, The solar system, Introduction to astronomy. Out that the Earth than a solar eclipse of everything that exists or is known exist! 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