Physics of Astronomy – Week 3 quiz
... 90Physics of Astronomy – Winter midterm –.Thus.2.Feb.2006 This is a CLOSED-BOOK exam to be taken in class. You have two hours, so pace yourself. SHOW YOUR WORK, to receive full credit, and include units wherever appropriate. Please circle or underline your answers, on problems with considerable calc ...
... 90Physics of Astronomy – Winter midterm –.Thus.2.Feb.2006 This is a CLOSED-BOOK exam to be taken in class. You have two hours, so pace yourself. SHOW YOUR WORK, to receive full credit, and include units wherever appropriate. Please circle or underline your answers, on problems with considerable calc ...
Unit Plan
... 14. Describe the difference between a sidereal day and the average solar day. 15. If Earth did not spin on its axis, what would we seen in the sky? 16. Give two reasons why winter days are colder than summer days. 17. How would the seasons be different if Earth were inclined 90⁰ instead of 23.5⁰? Wh ...
... 14. Describe the difference between a sidereal day and the average solar day. 15. If Earth did not spin on its axis, what would we seen in the sky? 16. Give two reasons why winter days are colder than summer days. 17. How would the seasons be different if Earth were inclined 90⁰ instead of 23.5⁰? Wh ...
Chapter 1 - A Modern View of the Universe
... Distance Units and Astronomy Planets: kilometers (km) (1 km ~ 0.6 mile) - i.e., Earth’s circumference is ~40,000 km Solar System: Astronomical Unit (AU) - average Earth-Sun distance = 150 million km - Venus is 0.7 AU from Sun, Mars at 1.5 AU Stars, Galaxies, Universe: light year (ly) - 9.46 trillio ...
... Distance Units and Astronomy Planets: kilometers (km) (1 km ~ 0.6 mile) - i.e., Earth’s circumference is ~40,000 km Solar System: Astronomical Unit (AU) - average Earth-Sun distance = 150 million km - Venus is 0.7 AU from Sun, Mars at 1.5 AU Stars, Galaxies, Universe: light year (ly) - 9.46 trillio ...
Instructor`s Guide
... • On the basis of scientific evidence, the universe is estimated to be over ten billion years old. The current theory is that its entire contents expanded explosively from a hot, dense, chaotic mass. • Stars condensed by gravity out of clouds of molecules of the lightest elements until nuclear fus ...
... • On the basis of scientific evidence, the universe is estimated to be over ten billion years old. The current theory is that its entire contents expanded explosively from a hot, dense, chaotic mass. • Stars condensed by gravity out of clouds of molecules of the lightest elements until nuclear fus ...
How Big is the Solar System?
... Chapel Hill-are far too small. They omit the three outermost planets, yet still cannot show the remaining ones far enough apart. The fact is that the planets are mighty small and the distances between them are almost ridiculously large. To make any representation whose scale is true for the planets ...
... Chapel Hill-are far too small. They omit the three outermost planets, yet still cannot show the remaining ones far enough apart. The fact is that the planets are mighty small and the distances between them are almost ridiculously large. To make any representation whose scale is true for the planets ...
Theme 3.1 Astronomy of the Ancients Stonehenge Most people
... world, not always in circular patterns. For example, we find them in Sweden on the upper left picture shown here; long arrays of them in the Carnac stones in Brittany and France as shown in the right hand panel; and in Africa, as shown on the bottom left. Stonehenge is unique in at least two ways. T ...
... world, not always in circular patterns. For example, we find them in Sweden on the upper left picture shown here; long arrays of them in the Carnac stones in Brittany and France as shown in the right hand panel; and in Africa, as shown on the bottom left. Stonehenge is unique in at least two ways. T ...
Unit E Note Pkg
... C. Asteroids - Between the orbits of Mars and Jupiter lies a narrow belt of small ________ ranging in size from a few meters to several hundred kilometers across. The largest known asteroid is … D. Comets - “________________”. They are made of _______________ traveling through space. When they get ...
... C. Asteroids - Between the orbits of Mars and Jupiter lies a narrow belt of small ________ ranging in size from a few meters to several hundred kilometers across. The largest known asteroid is … D. Comets - “________________”. They are made of _______________ traveling through space. When they get ...
11.2b The Solar System Asteroids and Gas Giants
... Uranus is composed mostly of hydrogen, helium, and ices of water, ammonia and methane. Uranus has small icy/rocky core, a hot fluid mantle and gas atmosphere that is 83% hydrogen, 15% helium and 2 % methane. The methane gas is mostly in the upper atmosphere and gives the planet a blue look because i ...
... Uranus is composed mostly of hydrogen, helium, and ices of water, ammonia and methane. Uranus has small icy/rocky core, a hot fluid mantle and gas atmosphere that is 83% hydrogen, 15% helium and 2 % methane. The methane gas is mostly in the upper atmosphere and gives the planet a blue look because i ...
here
... A) Stars are fixed and never move. B) Although most stars move through the sky, the brightest stars do not, and these are the ones that trace the patterns we see in the constellations. C) Stars within a constellation move together as a group, which tends to hide their actual motion and prevent the p ...
... A) Stars are fixed and never move. B) Although most stars move through the sky, the brightest stars do not, and these are the ones that trace the patterns we see in the constellations. C) Stars within a constellation move together as a group, which tends to hide their actual motion and prevent the p ...
The mass of the Moon is 1/81 of the mass of the Earth. Compared to
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
... A planet (P) is moving around the Sun (S) in an elliptical orbit. As the planet moves from aphelion to perihelion, the Sun’s gravitational force A. does positive work on the planet. B. does negative work on the planet. C. does positive work on the planet during part of the motion and negative work d ...
speed
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
The mass of the Moon is 1/81 of the mass of the Earth. Compared to
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
... Compared to the Earth, Planet X has twice the mass and twice the radius. This means that compared to the amount of energy required to move an object from the Earth’s surface to infinity, the amount of energy required to move that same object from Planet X’s surface to infinity is A. 4 times as much. ...
Gravity - Alvinisd.net
... 4 Just like the attraction between you and Earth and between the Moon and Earth, the Sun has a gravitational attraction with Earth that results in Earth orbiting the Sun. The Sun’s attraction is so strong that all objects in the solar system orbit around this medium-sized star. If the Sun’s gravitat ...
... 4 Just like the attraction between you and Earth and between the Moon and Earth, the Sun has a gravitational attraction with Earth that results in Earth orbiting the Sun. The Sun’s attraction is so strong that all objects in the solar system orbit around this medium-sized star. If the Sun’s gravitat ...
newsletter - Thanet Astronomy Group
... guidebook which is both an easy introduction to astronomy and a useful reference for seasoned stargazers like myself. It was written and illustrated by astronomical experts Storm Dunlop and Wil Tirion and was approved by the astronomers of the Royal Observatory Greenwich, so I know that all the refe ...
... guidebook which is both an easy introduction to astronomy and a useful reference for seasoned stargazers like myself. It was written and illustrated by astronomical experts Storm Dunlop and Wil Tirion and was approved by the astronomers of the Royal Observatory Greenwich, so I know that all the refe ...
Planet X - The 2017 Arrival
... magnetosphere of Planet X) and moved in the opposite direction back towards the Sun. Its forward momentum was decelerated. Pioneer was travelling towards the right of Nibiru at this point when the massive object was 66.8 AU (Astronomical Units, or the distance from the earth to the sun) from the Su ...
... magnetosphere of Planet X) and moved in the opposite direction back towards the Sun. Its forward momentum was decelerated. Pioneer was travelling towards the right of Nibiru at this point when the massive object was 66.8 AU (Astronomical Units, or the distance from the earth to the sun) from the Su ...
Venus - AstroArts
... is the brightest object in the night sky, except for the Moon, reaching an apparent magnitude of −4.6. ...
... is the brightest object in the night sky, except for the Moon, reaching an apparent magnitude of −4.6. ...
History of astronomy
... Once he started working on the orbit of Mars, Kepler realized that its orbit could not be circular. He next tried an egg-shaped (ovoid) curve. That worked better, but the data were best fit by an ellipse. He discovered three laws of planetary motion. 1) the orbit of a planet is an ellipse, with the ...
... Once he started working on the orbit of Mars, Kepler realized that its orbit could not be circular. He next tried an egg-shaped (ovoid) curve. That worked better, but the data were best fit by an ellipse. He discovered three laws of planetary motion. 1) the orbit of a planet is an ellipse, with the ...
the submissions here
... Geophysics in Action at Yellowstone by Dmitriy Zhigunov Geysers indicate a magma chamber under the surface of the ground. The magma chamber heats up the surrounding rocks. Rainwater and melted snow work their way through fractures in the rock, and rises back to the surface when it reaches the hot r ...
... Geophysics in Action at Yellowstone by Dmitriy Zhigunov Geysers indicate a magma chamber under the surface of the ground. The magma chamber heats up the surrounding rocks. Rainwater and melted snow work their way through fractures in the rock, and rises back to the surface when it reaches the hot r ...
Terrestrial Planets
... members of the system, eventually grinding a significant amount of material into dust grains distributed in a so-called debris disk. Because the grains have larger surface area per unit mass compared to larger bodies, they (re)radiate more energy and therefore are more easily detected in the infrare ...
... members of the system, eventually grinding a significant amount of material into dust grains distributed in a so-called debris disk. Because the grains have larger surface area per unit mass compared to larger bodies, they (re)radiate more energy and therefore are more easily detected in the infrare ...
Third Grade Astronomy
... Unit to help teach additional activities to enhance the IOBS kit, with more active recording and modeling of the observable patterns in our sky. Share ideas for integrating science notebooking, literacy, technology and math ...
... Unit to help teach additional activities to enhance the IOBS kit, with more active recording and modeling of the observable patterns in our sky. Share ideas for integrating science notebooking, literacy, technology and math ...
The Formation of Planetary Systems
... Stars with composition like our Sun are much more likely to have planets, showing that the “dusty disk” theory is plausible Some of these “planets” may actually be brown dwarfs, but probably not many Astronomy 1-1 ...
... Stars with composition like our Sun are much more likely to have planets, showing that the “dusty disk” theory is plausible Some of these “planets” may actually be brown dwarfs, but probably not many Astronomy 1-1 ...
Earth Rotation and Revolution
... • The noon perpendicular rays of the sun travel southward from the Tropic of Cancer (23.5° N) on June 21 passing the Equator on September 21 and going to the Tropic of Capricorn (23.5° S) where it turns around and starts going back up passing the Equator on March 21and arriving at the Tropic of Canc ...
... • The noon perpendicular rays of the sun travel southward from the Tropic of Cancer (23.5° N) on June 21 passing the Equator on September 21 and going to the Tropic of Capricorn (23.5° S) where it turns around and starts going back up passing the Equator on March 21and arriving at the Tropic of Canc ...
The Sky Above: A First Look
... should go to a dark, high place. It is best to be as far from artificial light as possible. Students should bring a blanket and a flashlight covered with red cellophane. The cellophane will reduce the glare from the flashlight. Ask students to record how many meteors they observe and at what times. ...
... should go to a dark, high place. It is best to be as far from artificial light as possible. Students should bring a blanket and a flashlight covered with red cellophane. The cellophane will reduce the glare from the flashlight. Ask students to record how many meteors they observe and at what times. ...
Rotation & Revolution
... • The noon perpendicular rays of the sun travel southward from the Tropic of Cancer (23.5° N) on June 21 passing the Equator on September 21 and going to the Tropic of Capricorn (23.5° S) where it turns around and starts going back up passing the Equator on March 21and arriving at the Tropic of Canc ...
... • The noon perpendicular rays of the sun travel southward from the Tropic of Cancer (23.5° N) on June 21 passing the Equator on September 21 and going to the Tropic of Capricorn (23.5° S) where it turns around and starts going back up passing the Equator on March 21and arriving at the Tropic of Canc ...
Astrobiology
Astrobiology is the study of the origin, evolution, distribution, and future of life in the universe: extraterrestrial life and life on Earth. This interdisciplinary field encompasses the search for habitable environments in our Solar System and habitable planets outside our Solar System, the search for evidence of prebiotic chemistry, laboratory and field research into the origins and early evolution of life on Earth, and studies of the potential for life to adapt to challenges on Earth and in outer space. Astrobiology addresses the question of whether life exists beyond Earth, and how humans can detect it if it does. (The term exobiology is similar but more specific—it covers the search for life beyond Earth, and the effects of extraterrestrial environments on living things.)Astrobiology makes use of physics, chemistry, astronomy, biology, molecular biology, ecology, planetary science, geography, and geology to investigate the possibility of life on other worlds and help recognize biospheres that might be different from the biosphere on Earth. The origin and early evolution of life is an inseparable part of the discipline of astrobiology. Astrobiology concerns itself with interpretation of existing scientific data; given more detailed and reliable data from other parts of the universe, the roots of astrobiology itself—physics, chemistry and biology—may have their theoretical bases challenged. Although speculation is entertained to give context, astrobiology concerns itself primarily with hypotheses that fit firmly into existing scientific theories.The chemistry of life may have begun shortly after the Big Bang, 13.8 billion years ago, during a habitable epoch when the Universe was only 10–17 million years old. According to the panspermia hypothesis, microscopic life—distributed by meteoroids, asteroids and other small Solar System bodies—may exist throughout the universe. According to research published in August 2015, very large galaxies may be more favorable to the creation and development of habitable planets than smaller galaxies, like the Milky Way galaxy. Nonetheless, Earth is the only place in the universe known to harbor life. Estimates of habitable zones around other stars, along with the discovery of hundreds of extrasolar planets and new insights into the extreme habitats here on Earth, suggest that there may be many more habitable places in the universe than considered possible until very recently.Current studies on the planet Mars by the Curiosity and Opportunity rovers are now searching for evidence of ancient life as well as plains related to ancient rivers or lakes that may have been habitable. The search for evidence of habitability, taphonomy (related to fossils), and organic molecules on the planet Mars is now a primary NASA objective on Mars.