Physics

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Author:
frosenflame
ID:
130393
Filename:
Physics
Updated:
2012-01-26 23:48:22
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Physics
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Physics
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  1. displacement formuli
    ∆x=vi ∆t+ a (∆t)2
  2. displacement vs distance
    • displacement= net change in location
    • distnce= travel path lentght
  3. final velocity
    • vf2=vi2 +2ad
    • vf=vi+at
  4. Newtons first law
    An object at rest remains at rest, and an object in motion continues in motion with constant velocity (that is, constant speed in a straight line) unless the object experiences a net external force.
  5. newtons second law
    F=ma
  6. Newtons Third Law
    If two objects interact, the magnitude of the force exerted on object 1 by object 2 is equal to magnitude of the force exerted on object 2 by object 1, and these two forces are oppisate in direction.
  7. coeficiant of static friction
  8. coefficiant of kinetic friction
  9. Force of friction
    Ff= μFn
  10. Work
    W=FD
  11. Kinetic energy
  12. Work-Kinetic energy theorem
    W= ∆KE
  13. Elastic potential energy
    • K=spring constant in N/m
  14. Mechanical energy
    ME=KE+PE
  15. Conservation of mechanical energy
    MEi=MEf
  16. Power
  17. Momentum
    P=MV
  18. Impulse momentum theorem
    F∆T=∆p=mvf -mvi
  19. conservation of momentum
    Pi=Pf

  20. Centripital Acceleration
  21. Centripital Force
  22. Keplers first law
    Each planet travels in an elliptical orbit around the sun, and the sun is at one of the focal points
  23. Keplers second law
    An imaginary line drawn from the sun to any planet sweeps out equal areas in equal time intervals
  24. keplers third law
    the square of a planets orbital period (T2) is proportional to the cube of the average distance (r3) between the planet and the sun, or
  25. period of an object in circular orbit
    • Period= the time it takes for one orbit
  26. orbital velocity
  27. torque
  28. Gravitational constant
  29. Newtons Law of Universal Gravitation
  30. Efficiency (mechanical)
  31. Conservation of energy
  32. Specific Heat Capacity
  33. Caliometry
  34. Latent Heat
  35. Work done by a gas


  36. Isovolumetric
    • No work done
    • ∆V=0
    • so P∆V=0 and W=0
    • Therefor ∆U=Q
  37. First Law of Thermodynamics
    ∆U=Q-W
  38. Isothermal
    • No change in temperature or internal energy
    • ∆T=0 so, ∆U=0; therefore, ∆U=Q-W=0; or
    • Q=W
  39. Abiabatic
    • no energy transferd as heat.
    • Q=0, so ∆U= -W
  40. Isolated system
    Ui=Uf
  41. Efficiancy of a heat engine
  42. Idele gases
    • A gas behaves like an Idele gas when Tempeture is high and presure is low
  43. Specific heat water

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