Other Galaxies, their Distances, and the Expansion of the Universe
... (more or less), so this is our best standard candle yet since they are so bright we can measure the distances to things that are very far away! ...
... (more or less), so this is our best standard candle yet since they are so bright we can measure the distances to things that are very far away! ...
Physical Geology - Perry Local Schools
... Gravitational force (weight) can be calculated from mass, but all other forces will only be quantified through force diagrams. Friction and normal forces are introduced conceptually at this level. Friction is a force between two surfaces that opposes sliding. Equations of static and kinetic friction ...
... Gravitational force (weight) can be calculated from mass, but all other forces will only be quantified through force diagrams. Friction and normal forces are introduced conceptually at this level. Friction is a force between two surfaces that opposes sliding. Equations of static and kinetic friction ...
Hubble`s Expansion of the Universe
... a distance indicator as they become too faint. At this point, we use another object known as type Ia supernovae. A supernova marks the end of a star’s life in an extremely energetic explosion. When a supernova explodes, its light intensity brightens to a peak, and then gradually fades over time. For ...
... a distance indicator as they become too faint. At this point, we use another object known as type Ia supernovae. A supernova marks the end of a star’s life in an extremely energetic explosion. When a supernova explodes, its light intensity brightens to a peak, and then gradually fades over time. For ...
Energy and Forms of Energy
... A. the mass has the greatest effect. B. the velocity has the greatest effect. C. the mass and the velocity each have an ...
... A. the mass has the greatest effect. B. the velocity has the greatest effect. C. the mass and the velocity each have an ...
Energy - Science Class Rocks!
... The ability to do work Work is done when a force moves an object over a distance ...
... The ability to do work Work is done when a force moves an object over a distance ...
763333A SOLDID STATE PHYSICS Exercise 1 Spring
... Show that the largest volume (percentage of the unit cell) that can be filled with atoms, supposed to be hard spheres, is a) 52 % for simple cubic, b) 68 % for bcc, and c) 74 % for fcc structures. (Hint: determine first the maximum radius of the spheres and then use the results of Problem 2.) 4. Rel ...
... Show that the largest volume (percentage of the unit cell) that can be filled with atoms, supposed to be hard spheres, is a) 52 % for simple cubic, b) 68 % for bcc, and c) 74 % for fcc structures. (Hint: determine first the maximum radius of the spheres and then use the results of Problem 2.) 4. Rel ...
Gamma-Ray Astroparticle Physics
... Many astronomical models of AGN suffer from lack of information in the ~50 GeV region… ...
... Many astronomical models of AGN suffer from lack of information in the ~50 GeV region… ...
The Galaxies
... ► Ellipticals range is size from the smallest known galaxies (1,000 LY across and about a million stars) to the largest known galaxies (nearly a million LY across with tens of trillions of stars). ...
... ► Ellipticals range is size from the smallest known galaxies (1,000 LY across and about a million stars) to the largest known galaxies (nearly a million LY across with tens of trillions of stars). ...
Here - gcisd
... faster, but it can still be traced back to the original singularity. This is a simplified demonstration, but it may help your child visualize the expansion of the universe. Here are some questions to discuss with ...
... faster, but it can still be traced back to the original singularity. This is a simplified demonstration, but it may help your child visualize the expansion of the universe. Here are some questions to discuss with ...
Energy Sources and Properties Notes
... -Remember that all matter is made up of particles too small to be seen. Properties: -All matter is made up of atoms (particles) that move faster when they heat up. -The faster the particles move, the higher the temperature. -Heat energy always moves from hotter objects to ...
... -Remember that all matter is made up of particles too small to be seen. Properties: -All matter is made up of atoms (particles) that move faster when they heat up. -The faster the particles move, the higher the temperature. -Heat energy always moves from hotter objects to ...
S8P2 Energy Transformations - Mrs. Carnes
... The Law of Conservation of Energy • No matter how energy is transformed, energy itself is not made or destroyed. • Law of Conservation of Energy states while energy may change from one form to another, energy is neither created nor destroyed ...
... The Law of Conservation of Energy • No matter how energy is transformed, energy itself is not made or destroyed. • Law of Conservation of Energy states while energy may change from one form to another, energy is neither created nor destroyed ...
Physical Science Plans Week 15
... SC.7.P.11.2 (AA) – Investigate and describe the transformation of energy from one form to another. SC.6.P.11.1 – Explore the Law of Conservation of Energy by differentiating between potential and kinetic energy. SC.7.P.11.3 – Cite evidence to explain that energy cannot be created nor destroyed, only ...
... SC.7.P.11.2 (AA) – Investigate and describe the transformation of energy from one form to another. SC.6.P.11.1 – Explore the Law of Conservation of Energy by differentiating between potential and kinetic energy. SC.7.P.11.3 – Cite evidence to explain that energy cannot be created nor destroyed, only ...
Energy and Work - AP Physics 2 Homework Page
... kinetic energy instantaneous kinetic energy potential energy instantaneous potential energy work Identify and name the following types of energy: gravitational potential electrical potential elastic potential chemical potential kinetic heat sound light Give the SI units ...
... kinetic energy instantaneous kinetic energy potential energy instantaneous potential energy work Identify and name the following types of energy: gravitational potential electrical potential elastic potential chemical potential kinetic heat sound light Give the SI units ...
Physics is PHUN! - Purdue Engineering
... • Thrill Factor is a measure used by roller coaster buffs to find out how exciting a roller coaster is. You can calculate the Thrill Factor by graphing your G’s vs. distance traveled. • Next, draw a line through g = 1. • Find the absolute value of the areas above and below g = 1 (by ESTIMATING the a ...
... • Thrill Factor is a measure used by roller coaster buffs to find out how exciting a roller coaster is. You can calculate the Thrill Factor by graphing your G’s vs. distance traveled. • Next, draw a line through g = 1. • Find the absolute value of the areas above and below g = 1 (by ESTIMATING the a ...
Big Bang and Beyond
... Interpretations of the results • IF the density of the matter after 1 nsec from the Big Bang is equal to 447,225,917,218,507,401,284,017 mg/cc, the Universe would have collapsed by now. • IF the density of the matter after 1 nsec from the Big Bang is equal to 447,225,917,218,507,401,284,015 mg/cc, ...
... Interpretations of the results • IF the density of the matter after 1 nsec from the Big Bang is equal to 447,225,917,218,507,401,284,017 mg/cc, the Universe would have collapsed by now. • IF the density of the matter after 1 nsec from the Big Bang is equal to 447,225,917,218,507,401,284,015 mg/cc, ...
File - Ms. D. Science CGPA
... What is MECHANICAL ENERGY?? Is the form of energy related with the motion, position, or shape of an object. Energy related with motion+ position+ shape= Mechanical energy ...
... What is MECHANICAL ENERGY?? Is the form of energy related with the motion, position, or shape of an object. Energy related with motion+ position+ shape= Mechanical energy ...
Tracing Energy Conversions
... – Energy can be converted from potential to kinetic and back again – All energy on earth can be traced back to the sun ...
... – Energy can be converted from potential to kinetic and back again – All energy on earth can be traced back to the sun ...
Determining Krypton Concentration is Xenon
... In the Millikan experiment there was a high percent difference and error. This probably is the result of the set up we used was very temperate an we constantly needed to adjust the camera and grid. Most problems during the experiment arose from focusing. The grid with the apparatus used was difficul ...
... In the Millikan experiment there was a high percent difference and error. This probably is the result of the set up we used was very temperate an we constantly needed to adjust the camera and grid. Most problems during the experiment arose from focusing. The grid with the apparatus used was difficul ...
Chapter 31 - The Galaxy & Universe
... A. Like other galaxies, but these are strong radio emitters. ...
... A. Like other galaxies, but these are strong radio emitters. ...
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.