printer-friendly sample test questions
... 1st Item Specification: Recognize the red shift effect and know that the most distant objects have the greatest degree of red shift. Depth of Knowledge Level 1 1. The expansion of the universe was first deduced from A. Edwin Hubble showing that more distant galaxies are moving away more rapidly. B. ...
... 1st Item Specification: Recognize the red shift effect and know that the most distant objects have the greatest degree of red shift. Depth of Knowledge Level 1 1. The expansion of the universe was first deduced from A. Edwin Hubble showing that more distant galaxies are moving away more rapidly. B. ...
G485 5.5.1 Structure of the Universe
... Hubble was convinced that the spectral line shift he had observed was due to the Doppler effect and using the Doppler shift equation above he concluded that the galaxy’s recession speed was much larger than anything found previously. Since then, over 100 000 quasars have been discovered and these ha ...
... Hubble was convinced that the spectral line shift he had observed was due to the Doppler effect and using the Doppler shift equation above he concluded that the galaxy’s recession speed was much larger than anything found previously. Since then, over 100 000 quasars have been discovered and these ha ...
Word
... galaxies as described by Hubble's Law are all that is required to produce the basic Big Bang model of the Universe. In fact, Einstein in 1917, just two years after formulating General Relativity, applied the Cosmological Principle to GR and came within an ace of predicting the expansion of the Unive ...
... galaxies as described by Hubble's Law are all that is required to produce the basic Big Bang model of the Universe. In fact, Einstein in 1917, just two years after formulating General Relativity, applied the Cosmological Principle to GR and came within an ace of predicting the expansion of the Unive ...
Activity 1 - Galaxies
... our eyes and can magnify the images they collect. This means they can see further into space and get more detailed images. Telescopes can be placed either on the ground or on satellites. The images collected by ground-based telescopes tend to be quite fuzzy because the Earth’s atmosphere dims, scatt ...
... our eyes and can magnify the images they collect. This means they can see further into space and get more detailed images. Telescopes can be placed either on the ground or on satellites. The images collected by ground-based telescopes tend to be quite fuzzy because the Earth’s atmosphere dims, scatt ...
7_Big_bang
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
... M31 is made out of lots of stars just like our own Milky Way! We are but one of very many galaxies! Stars were very dim. This implied M31 is very far away. Of order 3 million light years! [Note, today we think of this distance as a very close neigbor.] Read discussion and debate in the Perfect Machi ...
Mass Segregation in Globular Clusters
... the total light a star emits. “Color” is the variation of a star’s brightness across all the visible wavelengths of light. This is ascertained by looking at its spectrum, or by measuring its brightness through assorted color filters. After many years of careful observations of isolated stellar popul ...
... the total light a star emits. “Color” is the variation of a star’s brightness across all the visible wavelengths of light. This is ascertained by looking at its spectrum, or by measuring its brightness through assorted color filters. After many years of careful observations of isolated stellar popul ...
the Full Chapter 6 -
... What about ultraviolet radiation, X-rays and gamma rays? They are completely blocked by the Earth’s atmosphere. Without space telescopes, astronomers would be blind to these higher energy forms of radiation. Studying them is important to help understand the violent Universe of hot stars, supernova e ...
... What about ultraviolet radiation, X-rays and gamma rays? They are completely blocked by the Earth’s atmosphere. Without space telescopes, astronomers would be blind to these higher energy forms of radiation. Studying them is important to help understand the violent Universe of hot stars, supernova e ...
Take Home #1 Complete the following on your own paper. Do not
... A. Scientists usually work in direct competition with each other. B. Scientists often build upon the evidence gathered by other scientists. C. Scientists work individually and do not usually interact with each other. D. Scientists each have jobs where they study completely different areas of science ...
... A. Scientists usually work in direct competition with each other. B. Scientists often build upon the evidence gathered by other scientists. C. Scientists work individually and do not usually interact with each other. D. Scientists each have jobs where they study completely different areas of science ...
Take Home #1 Complete the following on your own paper. Do not
... A. Scientists usually work in direct competition with each other. B. Scientists often build upon the evidence gathered by other scientists. C. Scientists work individually and do not usually interact with each other. D. Scientists each have jobs where they study completely different areas of science ...
... A. Scientists usually work in direct competition with each other. B. Scientists often build upon the evidence gathered by other scientists. C. Scientists work individually and do not usually interact with each other. D. Scientists each have jobs where they study completely different areas of science ...
Astronomy Unit 4 Galaxies
... 27. These groupings of galaxies themselves form larger groupings called __________________________ 28. Measuring the mass of superclusters of galaxies has led to the discovery that 90% of the universe is composed of this. __________________________ 29. Galaxies grow through collisions with other gal ...
... 27. These groupings of galaxies themselves form larger groupings called __________________________ 28. Measuring the mass of superclusters of galaxies has led to the discovery that 90% of the universe is composed of this. __________________________ 29. Galaxies grow through collisions with other gal ...
SUFFOLK COUNTY COMMUNITY COLLEGE
... molded our modern view of the Universe, even though these phenomena are outside of everyday experience. Starting with Galileo, and ending with Albert Einstein, it will show the student how the scientific process is performed, using observations of faint and distant object, whilst relating these obse ...
... molded our modern view of the Universe, even though these phenomena are outside of everyday experience. Starting with Galileo, and ending with Albert Einstein, it will show the student how the scientific process is performed, using observations of faint and distant object, whilst relating these obse ...
PPT - Wayne State University Physics and Astronomy
... This dark matter is believed to surround most galaxies, and the massto-light ratio for certain galaxies can exceed 300 times that of the sun. ...
... This dark matter is believed to surround most galaxies, and the massto-light ratio for certain galaxies can exceed 300 times that of the sun. ...
Class 28 (Jun 2) - Physics at Oregon State University
... • MACHOs! Massive, Compact Halo Objects. • Not enough of such things have been detected to make up the quantity of dark matter needed. ...
... • MACHOs! Massive, Compact Halo Objects. • Not enough of such things have been detected to make up the quantity of dark matter needed. ...
Life Cycle of Stars
... content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate constant to the distance between them. He used this to formulate Hubble's Law (1929) which helped as ...
... content, distance, shape, and brightness. He noticed that there were redshifts in the emission of light from many dimly lit galaxies and realized that these were moving away from each other at a rate constant to the distance between them. He used this to formulate Hubble's Law (1929) which helped as ...
THE DOPPLER EFFECT
... that except for a few very nearby ones, all the galaxies had red shifts, indicating that they were receding from us at a hefty fraction of the speed of light. ...
... that except for a few very nearby ones, all the galaxies had red shifts, indicating that they were receding from us at a hefty fraction of the speed of light. ...
CosmologyL1
... Galaxy, thus demonstrating that our Galaxy is not the Universe. • Resolution of the Baade demonstrated that MW is a typical galaxy. Contemporary LSS studies and CMB results: At large scales the Universe looks the same wherever you are. In 1917 Einstein invented the cosmological constant as a term in ...
... Galaxy, thus demonstrating that our Galaxy is not the Universe. • Resolution of the Baade demonstrated that MW is a typical galaxy. Contemporary LSS studies and CMB results: At large scales the Universe looks the same wherever you are. In 1917 Einstein invented the cosmological constant as a term in ...
Wh t i C l ? What is Cosmology?
... Consider spherical shell of radius r and thickness dr Number of stars in this shell is 4πr2n dr, where n is number density of stars Light from each star is L/4πr2, therefore light from shell is nL dr, independent of r therefore, in infinite universe, night sky should be infinitely bright (or at leas ...
... Consider spherical shell of radius r and thickness dr Number of stars in this shell is 4πr2n dr, where n is number density of stars Light from each star is L/4πr2, therefore light from shell is nL dr, independent of r therefore, in infinite universe, night sky should be infinitely bright (or at leas ...
Chapter 18 - the Universe Begins
... expanded (see Fig. 18.9) and cooled, energy began to condense into matter (according to Einstein’s mass–energy relationship), forming matter and anti-matter in approximately equal proportions. As the anti-matter collided with the matter, it was annihilated and converted back into energy (see Fig. 18 ...
... expanded (see Fig. 18.9) and cooled, energy began to condense into matter (according to Einstein’s mass–energy relationship), forming matter and anti-matter in approximately equal proportions. As the anti-matter collided with the matter, it was annihilated and converted back into energy (see Fig. 18 ...
Lecture6
... framework for describing the behavior of a related set of natural or social phenomena. • It originates from and/or is supported by experimental evidence. • In this sense, a theory is a systematic and formalized expression of all previous observations that is predictive, logical and testable. • Scien ...
... framework for describing the behavior of a related set of natural or social phenomena. • It originates from and/or is supported by experimental evidence. • In this sense, a theory is a systematic and formalized expression of all previous observations that is predictive, logical and testable. • Scien ...
Astro-2: History of the Universe
... framework for describing the behavior of a related set of natural or social phenomena. • It originates from and/or is supported by experimental evidence. • In this sense, a theory is a systematic and formalized expression of all previous observations that is predictive, logical and testable. • Sc ...
... framework for describing the behavior of a related set of natural or social phenomena. • It originates from and/or is supported by experimental evidence. • In this sense, a theory is a systematic and formalized expression of all previous observations that is predictive, logical and testable. • Sc ...
Revision Guide (Unit 2 Module 5) - Pearson Schools and FE Colleges
... All of the galaxies in the universe are moving away from each other. We can imagine reversing this picture; in the past, the galaxies were all much closer together and, at some time, they were all compressed together in a tiny space. This suggests that the universe began from a single point, billion ...
... All of the galaxies in the universe are moving away from each other. We can imagine reversing this picture; in the past, the galaxies were all much closer together and, at some time, they were all compressed together in a tiny space. This suggests that the universe began from a single point, billion ...
Determination of spiral orbits with constant tangential velocity
... outside, and the gray-dashed line the decrease very close to the center. Near to the center, the measured velocity agrees really well with the calculation. However, for greater distances from the center a surprising discrepancy appears. The measured velocities are nearly independent from the distanc ...
... outside, and the gray-dashed line the decrease very close to the center. Near to the center, the measured velocity agrees really well with the calculation. However, for greater distances from the center a surprising discrepancy appears. The measured velocities are nearly independent from the distanc ...
review
... The halo consists mainly of globular clusters which orbit in elongated ellipses around the center of the galaxy. A globular cluster has Population II stars, all formed at the same early time in the Milky Way’s history. Observations of Cepheids in globular clusters enabled the early size measurements ...
... The halo consists mainly of globular clusters which orbit in elongated ellipses around the center of the galaxy. A globular cluster has Population II stars, all formed at the same early time in the Milky Way’s history. Observations of Cepheids in globular clusters enabled the early size measurements ...
Chapter 12 Our Place in the Universe
... 1912 she discovered that a certain type of star called a Cepheid variable changes its brightness with a regular period. She also found that the length of time for a star to complete a cycle of bright to dim to bright again depended on the size of the star. She did this by looking at nearby Cepheids ...
... 1912 she discovered that a certain type of star called a Cepheid variable changes its brightness with a regular period. She also found that the length of time for a star to complete a cycle of bright to dim to bright again depended on the size of the star. She did this by looking at nearby Cepheids ...