DSST® ASTRONOMY EXAM INFORMATION
... b. The spinning of a top c. The swinging of a pendulum d. The recoil of a shotgun 3. The energy in the interior of a white dwarf is transported outward in the same fashion as the energy is transmitted a. in an airplane shockwave b. from an electric oven c. from a hot-air furnace d. from tip to handl ...
... b. The spinning of a top c. The swinging of a pendulum d. The recoil of a shotgun 3. The energy in the interior of a white dwarf is transported outward in the same fashion as the energy is transmitted a. in an airplane shockwave b. from an electric oven c. from a hot-air furnace d. from tip to handl ...
Wilmslow Guild Lecture 2008
... i.e. 1st generation), contained none of the heavier elements to start with. These are still visible by observing distant galaxies, which are of course further back in time. In a series of papers in the 1950’s, Sir Fred Hoyle, with colleagues Fowler and the Burbridges, established the principle of st ...
... i.e. 1st generation), contained none of the heavier elements to start with. These are still visible by observing distant galaxies, which are of course further back in time. In a series of papers in the 1950’s, Sir Fred Hoyle, with colleagues Fowler and the Burbridges, established the principle of st ...
Ch. 21 notes-1
... After the big bang, matter in the universe separated into galaxies. Gas and dust spread throughout space in our galaxy. About five billion years ago, a giant cloud of gas and dust, or nebula, collapsed to form the solar system. Slowly the nebula shrank to form a spinning disk. As gravity pulled s ...
... After the big bang, matter in the universe separated into galaxies. Gas and dust spread throughout space in our galaxy. About five billion years ago, a giant cloud of gas and dust, or nebula, collapsed to form the solar system. Slowly the nebula shrank to form a spinning disk. As gravity pulled s ...
Activity 58 "Follow the Energy"
... not belong with the others. b. Circle the word in each list that is a category that includes the others. c. Explain how the word you circled relates to the other words in the list, and how the word you crossed out does not fit in the list. ____________________________________________________________ ...
... not belong with the others. b. Circle the word in each list that is a category that includes the others. c. Explain how the word you circled relates to the other words in the list, and how the word you crossed out does not fit in the list. ____________________________________________________________ ...
Origins of the Universe
... The Big Bang Theory • A theory for the creation of the universe • Scientists believe about 14 billion years ago, the universe was unimaginably compact, small, and dense • Universe began its expansion after a giant explosion, coined the Big Bang • It began expanding with unimaginable force from a ho ...
... The Big Bang Theory • A theory for the creation of the universe • Scientists believe about 14 billion years ago, the universe was unimaginably compact, small, and dense • Universe began its expansion after a giant explosion, coined the Big Bang • It began expanding with unimaginable force from a ho ...
1201 Discussion Notes
... young. The galaxies we see nearby are older. Therefore, activity is more common among young galaxies than older ones. Current theory holds that active galactic nuclei are powered by supermassive black holes. How is the energy produced? The gravitational potential energy of matter that is falling tow ...
... young. The galaxies we see nearby are older. Therefore, activity is more common among young galaxies than older ones. Current theory holds that active galactic nuclei are powered by supermassive black holes. How is the energy produced? The gravitational potential energy of matter that is falling tow ...
Science Chapter 3 – Unit B: Forms of Energy Lesson 1: Kinetic and
... Batteries, food, gasoline, and coal are all examples of this kind of stored energy Changing Between Kinetic and Potential Energy Energy can change from kinetic to potential energy and from potential to kinetic energy. But, the total amount of energy doesn’t change. A roller coaster car has its great ...
... Batteries, food, gasoline, and coal are all examples of this kind of stored energy Changing Between Kinetic and Potential Energy Energy can change from kinetic to potential energy and from potential to kinetic energy. But, the total amount of energy doesn’t change. A roller coaster car has its great ...
Physics - Content by Unit
... Fresh evidence from the Andromeda galaxy At about the same time, astronomers Kent Ford and Vera Cooper Rubin at the Carnegie Institution of Washington began a detailed study of the motion of stars in the nearby galaxy of Andromeda. Galaxies are so large that even stars traveling at 200 kilometers pe ...
... Fresh evidence from the Andromeda galaxy At about the same time, astronomers Kent Ford and Vera Cooper Rubin at the Carnegie Institution of Washington began a detailed study of the motion of stars in the nearby galaxy of Andromeda. Galaxies are so large that even stars traveling at 200 kilometers pe ...
Work and Energy unit guide and objectives 2012
... Define dissipated energy and its role in energy transfer. What is the difference between mechanical and non-mechanical energy? How do friction, air resistance, sound and vibrations influence total mechanical energy? How does a hydroelectric power station illustrate the transfer of energy? How does t ...
... Define dissipated energy and its role in energy transfer. What is the difference between mechanical and non-mechanical energy? How do friction, air resistance, sound and vibrations influence total mechanical energy? How does a hydroelectric power station illustrate the transfer of energy? How does t ...
Beyond the Big Bang - Physics Department, Princeton University
... schoolchildren. A central element, the idea that the universe emerged from a very hot, dense state 14 billion years ago and has been expanding and cooling ever since, has been firmly established through many independent measurements. But nearly every other feature of the theory has had to be modifie ...
... schoolchildren. A central element, the idea that the universe emerged from a very hot, dense state 14 billion years ago and has been expanding and cooling ever since, has been firmly established through many independent measurements. But nearly every other feature of the theory has had to be modifie ...
Catherine Cress - CHPC Conference
... 1. What is dark matter and dark energy or do we need gravity modified? 2. How do galaxies evolve? (especially radio data applications and simulations) ...
... 1. What is dark matter and dark energy or do we need gravity modified? 2. How do galaxies evolve? (especially radio data applications and simulations) ...
Matter and Energy Study Guide Key
... e. Vaporization: liquid to gas- (heating required) energy absorbed (includes boiling and evaporation) f. Freezing: liquid to solid- (cooling required) energy released g. Condensing: gas to liquid- (cooling required) energy released ...
... e. Vaporization: liquid to gas- (heating required) energy absorbed (includes boiling and evaporation) f. Freezing: liquid to solid- (cooling required) energy released g. Condensing: gas to liquid- (cooling required) energy released ...
Slides - Physics at SMU
... This is Relativistic rocket 1, RR1 , the prototype long distance short time traveler developed by NASA’s biggest and best scientists. It Travels with a continuous Acceleration that happens to be EXACTLY the same as that felt on earth ( 1 g = 9.81 m/s2) ...
... This is Relativistic rocket 1, RR1 , the prototype long distance short time traveler developed by NASA’s biggest and best scientists. It Travels with a continuous Acceleration that happens to be EXACTLY the same as that felt on earth ( 1 g = 9.81 m/s2) ...
An object can store energy as the result of its position. For example
... 1) Create your own track using the pieces in the upper left or select one of the premade tracks (Click on the “Tracks” link in the upper left, next to File). In the space below, draw your track and mark four points on your track that you would like to investigate. ...
... 1) Create your own track using the pieces in the upper left or select one of the premade tracks (Click on the “Tracks” link in the upper left, next to File). In the space below, draw your track and mark four points on your track that you would like to investigate. ...
Work and Energy Study Guide - Ms. Gamm
... Work and Energy Schedule Week 1 (Objectives: 1a-1, 1a-4, 1b, 2b, 4a, 4b) Identify if work is positive, negative or zero Calculate the work done on an object by a force over a certain displacement Calculate the power required to maintain the motion of an object Calculate the work performed by ...
... Work and Energy Schedule Week 1 (Objectives: 1a-1, 1a-4, 1b, 2b, 4a, 4b) Identify if work is positive, negative or zero Calculate the work done on an object by a force over a certain displacement Calculate the power required to maintain the motion of an object Calculate the work performed by ...
Discussion Class 4
... The point is that Gauss’s law (and ∇ × E = 0) by themselves do not determine the field uniquely – like any differential equations, they must be supplemented by appropriate boundary conditions. Ordinarily, we impose them almost subconsciously (e.g. E must go to zero far from the source charge) – or w ...
... The point is that Gauss’s law (and ∇ × E = 0) by themselves do not determine the field uniquely – like any differential equations, they must be supplemented by appropriate boundary conditions. Ordinarily, we impose them almost subconsciously (e.g. E must go to zero far from the source charge) – or w ...
Lecture 17: Black Holes
... Alternative hypothesis: interacting, massive dark matter particle • Dark matter particles are captured by stars, and settle in the center to a thermal distribution. • If sufficient dark matter accumulates, it collapses into a self-gravitating object in the star center. • If the dark matter mass is ...
... Alternative hypothesis: interacting, massive dark matter particle • Dark matter particles are captured by stars, and settle in the center to a thermal distribution. • If sufficient dark matter accumulates, it collapses into a self-gravitating object in the star center. • If the dark matter mass is ...
Video Notes #5 – Introduction to Energy
... found in food to give living things energy (chemical energy is potential energy because it is “stored”). G__________________________ - the energy of position or place. A _____________ sitting at the top of a __________ is an example of gravitational energy. H__________________________ - the energy t ...
... found in food to give living things energy (chemical energy is potential energy because it is “stored”). G__________________________ - the energy of position or place. A _____________ sitting at the top of a __________ is an example of gravitational energy. H__________________________ - the energy t ...
Forms of Energy
... Potential energy stored in the chemical bonds that hold chemical compounds together. Examples: foods, matches, cell or your bodies When chemical bonds are broken chemical energy is released. ...
... Potential energy stored in the chemical bonds that hold chemical compounds together. Examples: foods, matches, cell or your bodies When chemical bonds are broken chemical energy is released. ...
kinetic and potential energy
... • You will be able to define and identify Kinetic and Potential energy. • You will be able to give examples of the two forms of energy. • You will be able to explain how one can transfer to the other. ...
... • You will be able to define and identify Kinetic and Potential energy. • You will be able to give examples of the two forms of energy. • You will be able to explain how one can transfer to the other. ...
Energy 1 - Readings
... in outer space, have kinetic energy. The kinetic energyof an object is proportional to its mass and the square of its velocity. Kinetic energy, denoted as KE, is described by the following equation: ...
... in outer space, have kinetic energy. The kinetic energyof an object is proportional to its mass and the square of its velocity. Kinetic energy, denoted as KE, is described by the following equation: ...
Dark energy
In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe. Dark energy is the most accepted hypothesis to explain the observations since the 1990s indicating that the universe is expanding at an accelerating rate. Assuming that the standard model of cosmology is correct, the best current measurements indicate that dark energy contributes 68.3% of the total energy in the present-day observable universe. The mass–energy of dark matter and ordinary matter contribute 26.8% and 4.9%, respectively, and other components such as neutrinos and photons contribute a very small amount. Again on a mass–energy equivalence basis, the density of dark energy (6.91 × 10−27 kg/m3) is very low, much less than the density of ordinary matter or dark matter within galaxies. However, it comes to dominate the mass–energy of the universe because it is uniform across space.Two proposed forms for dark energy are the cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic quantities whose energy density can vary in time and space. Contributions from scalar fields that are constant in space are usually also included in the cosmological constant. The cosmological constant can be formulated to be equivalent to vacuum energy. Scalar fields that do change in space can be difficult to distinguish from a cosmological constant because the change may be extremely slow.High-precision measurements of the expansion of the universe are required to understand how the expansion rate changes over time and space. In general relativity, the evolution of the expansion rate is parameterized by the cosmological equation of state (the relationship between temperature, pressure, and combined matter, energy, and vacuum energy density for any region of space). Measuring the equation of state for dark energy is one of the biggest efforts in observational cosmology today.Adding the cosmological constant to cosmology's standard FLRW metric leads to the Lambda-CDM model, which has been referred to as the ""standard model of cosmology"" because of its precise agreement with observations. Dark energy has been used as a crucial ingredient in a recent attempt to formulate a cyclic model for the universe.