Chapter105.ppt
... of gas to clump into separate nebulae. Gravity caused clumps of gas in the nebulae to coalesce into dense, revolving balls. Centrifugal force caused the spinning cloud of gas to form into a disk with a spherical core that eventually continued to collapse inward and become a protostar. • As the densi ...
... of gas to clump into separate nebulae. Gravity caused clumps of gas in the nebulae to coalesce into dense, revolving balls. Centrifugal force caused the spinning cloud of gas to form into a disk with a spherical core that eventually continued to collapse inward and become a protostar. • As the densi ...
Ch. 26.5: The Expanding Universe
... Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. This tells us that there must be more mass … we’re just not seeing i ...
... Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. This tells us that there must be more mass … we’re just not seeing i ...
chapter 28 pages 747-752
... • Therefore scientists interpret this to be coming from the beginning of the big bang ...
... • Therefore scientists interpret this to be coming from the beginning of the big bang ...
review
... that time, the temperature of the universe was about 3000K and the photons had a blackbody spectrum appropriate to that temperature. Since then the expansion has cooled the universe and stretched the original visible light to microwaves. Observations show an excellent blackbody spectrum now with 2.7 ...
... that time, the temperature of the universe was about 3000K and the photons had a blackbody spectrum appropriate to that temperature. Since then the expansion has cooled the universe and stretched the original visible light to microwaves. Observations show an excellent blackbody spectrum now with 2.7 ...
La constant cosmològica i l*energia fosca: del Big Bang al futur de l
... Theorem 2 (Black Holes). Let (M,g) a global hyperbolic space-time satisfying Rab kakb ≥ 0 for all lightlike vectors ka (Einstein’s Eqs. with the strong or the weak energy condit’s.). Let us assume that there exists a spatial Cauchy C² hypersurface, Σ, and a trapped surface, and let θ0 be the maximum ...
... Theorem 2 (Black Holes). Let (M,g) a global hyperbolic space-time satisfying Rab kakb ≥ 0 for all lightlike vectors ka (Einstein’s Eqs. with the strong or the weak energy condit’s.). Let us assume that there exists a spatial Cauchy C² hypersurface, Σ, and a trapped surface, and let θ0 be the maximum ...
The Big Bang
... According to the big bang theory, what did the small sphere in the figure to the left contain? After the big bang, what happened to the matter that was released? Why do scientists now believe that the matter that exploded out of the big bang did not distribute itself evenly throughout the universe? ...
... According to the big bang theory, what did the small sphere in the figure to the left contain? After the big bang, what happened to the matter that was released? Why do scientists now believe that the matter that exploded out of the big bang did not distribute itself evenly throughout the universe? ...
Homework 1 - Concord University
... at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to our TV transmissions (which leave Earth as radio waves). e. [5 points]. The nearest g ...
... at 1.3 parsec (1 parsec = 3.1×1018 cm). Imagine there are space aliens on αCen, then (i) sketch one, and (ii) comment on what they see going on here when they look at us with high-power telescopes and/or tune in to our TV transmissions (which leave Earth as radio waves). e. [5 points]. The nearest g ...
Galaxies and the Universe - Grandview Independent School
... extreme cases, billion solar masses. Our own galaxy, the Milky Way is no exception. ...
... extreme cases, billion solar masses. Our own galaxy, the Milky Way is no exception. ...
123mt13-2a
... Confine your answers to the space provided and write legibly for the last 3 questions. There are a total of 120 points on this exam. Part I: True or False: Circle your answer. 2 pts each ...
... Confine your answers to the space provided and write legibly for the last 3 questions. There are a total of 120 points on this exam. Part I: True or False: Circle your answer. 2 pts each ...
Higher Physics Content Statements
... Measurements of the velocities of galaxies and their distance from us lead to the theory of the expanding Universe. Gravity is the force which slows down the expansion. The eventual fate of the Universe depends on its mass. The orbital speed of the Sun and other stars gives a way of determining the ...
... Measurements of the velocities of galaxies and their distance from us lead to the theory of the expanding Universe. Gravity is the force which slows down the expansion. The eventual fate of the Universe depends on its mass. The orbital speed of the Sun and other stars gives a way of determining the ...
How many atoms make up the universe?
... Inflation theory says • A currently popular Inflation Theory predicts that the mass density of the Universe should be close to the so-called critical density that separates an open universe that always grows from a closed universe that ultimately collapses again. • This critical mass density is cur ...
... Inflation theory says • A currently popular Inflation Theory predicts that the mass density of the Universe should be close to the so-called critical density that separates an open universe that always grows from a closed universe that ultimately collapses again. • This critical mass density is cur ...
ASTR100 Class 01 - University of Maryland Department of
... to lie on the celestial sphere. The ecliptic is the Sun’s apparent path through the celestial sphere. ...
... to lie on the celestial sphere. The ecliptic is the Sun’s apparent path through the celestial sphere. ...
Document
... as a framework for how that history made our existence possible. So first we need to know something of the structure and arrangement of this universe whose history we want to describe. Theme - Gaining perspective on how we connect to the universe: we are products of the whole universe, not just our ...
... as a framework for how that history made our existence possible. So first we need to know something of the structure and arrangement of this universe whose history we want to describe. Theme - Gaining perspective on how we connect to the universe: we are products of the whole universe, not just our ...
ONLINE practice exam
... 2. A supernova goes off in a galaxy whose cosmological redshift is z =0.2. From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this info ...
... 2. A supernova goes off in a galaxy whose cosmological redshift is z =0.2. From its maximum brightness, astronomers determine that it is located at a distance of 1000 Mpc. (a) What is the observed wavelength of the HI spectral line from this galaxy? (The rest wavelength is 21.1cm) (b) Use this info ...
Heart of Darkness - Princeton University Press Blog
... Heart of Darkness describes the incredible saga of humankind’s quest to unravel the deepest secrets of the universe. Over the past thirty years, scientists have learned that two little-understood components—dark matter and dark energy— comprise most of the known cosmos, explain the growth of all cos ...
... Heart of Darkness describes the incredible saga of humankind’s quest to unravel the deepest secrets of the universe. Over the past thirty years, scientists have learned that two little-understood components—dark matter and dark energy— comprise most of the known cosmos, explain the growth of all cos ...
How the universe began
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
... light appears redder than expected because its wavelength is stretched. • Hubble’s results proved that galaxies move away from us. • The galaxies further away have a bigger red shift because they are moving away faster than closer galaxies ...
Guide to Deep Space Poster PDF
... imagine waves in the ocean, their wavelength is the distance between each crest. Just for a moment think about the familiar colours of the rainbow (or spectrum). At one side we start with red which has a long wavelength, next orange with slightly shorter wavelength, moving through the colours to blu ...
... imagine waves in the ocean, their wavelength is the distance between each crest. Just for a moment think about the familiar colours of the rainbow (or spectrum). At one side we start with red which has a long wavelength, next orange with slightly shorter wavelength, moving through the colours to blu ...
Introduction to Astronomy
... It's 100,000 light years side to side. It bulges in the middle, 16,000 light years thick But out by us it's just 3,000 light years wide We're 30,000 light years from galactic central point, We go round every 200 million years And our galaxy is only one of millions of billions In this amazing and exp ...
... It's 100,000 light years side to side. It bulges in the middle, 16,000 light years thick But out by us it's just 3,000 light years wide We're 30,000 light years from galactic central point, We go round every 200 million years And our galaxy is only one of millions of billions In this amazing and exp ...
Key Areas covered
... Following the Big Bang, temperatures rapidly cooled and tiny particles of matter began to form. The first atoms to form were hydrogen and helium. This matter created stars, galaxies and planets. ...
... Following the Big Bang, temperatures rapidly cooled and tiny particles of matter began to form. The first atoms to form were hydrogen and helium. This matter created stars, galaxies and planets. ...
Key Areas covered
... Following the Big Bang, temperatures rapidly cooled and tiny particles of matter began to form. The first atoms to form were hydrogen and helium. This matter created stars, galaxies and planets. ...
... Following the Big Bang, temperatures rapidly cooled and tiny particles of matter began to form. The first atoms to form were hydrogen and helium. This matter created stars, galaxies and planets. ...
Age, Evolution, and Size of the Cosmos
... traditional answer: there was no time speculative ideas: Big Bounce • Big Bang is one of the greatest challenges in physics ...
... traditional answer: there was no time speculative ideas: Big Bounce • Big Bang is one of the greatest challenges in physics ...
How Big is Big? Integrated Science 2 Name: Date: Pd: Select items
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
... A billion is 109 or 1,000,000,000. And it is a BIG number! There are many cases in which numbers like a billion are used to describe topics in science, such as the age of the universe, the length of a galaxy, or number of stars in a galaxy. Before we begin to look at our Origins unit, which covers t ...
