physics 3.1

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Anonymous
ID:
121860
Filename:
physics 3.1
Updated:
2011-12-08 11:16:09
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thermal concepts
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Description:
irmo high school
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  1. simple harmonic motion
    • a=-w^2x
    • simple harmonic motion- a particle that is disturved awat from its fixed equilibrium position experiences an acceleration that is proportional and opposite to its displacement
  2. heat
    placed in ice and boiling water. boiling being 100 ice being 0. equal intervals placed between
  3. heat
    heat is ebergy that is exchanged between systems at different temperatures
  4. internal energy
    the total kinetic energy of the molecules of a system plus the potential energy associated with the intermolecular forces
  5. absolute temperature
    the absolute temperature of a gas is a measure of the average kinetic energy of its molecules
  6. mole
    the amount of substance that contains as meant elementart particles (atoms, ions, molecules) as there are in 12g of carbon-12 atoms
  7. avogadros constant
    6.022*10^23 mol^-1
  8. specific heat capacity
    • the heat required to raise unit mass of a substance by unit temperature interval under specified conditions, such as constant pressure: usually measured in joules per kelvin per kilogram. Symbol cp (for constant pressure) Also called specific heat
    • Q=mc(delta)T
  9. specific latent heats of fusion
    The amount of heat released / absorbed from a substance at constant temperature as you change state from liquid->solid / solid->liquid.Read more:
  10. vaporization
    the transition of matter from a solid or liquid phase into a gaseous (or vapor) phase. Water boiling into steam is an example of vaporization
  11. why does temperature stay constant during a phase change
    • Because the energy is all being used to change the state of the substance (ordering the molcules) instead of increasing the temperature ("jiggling" the molecules.
    • (isothermal change)

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