PHSC 1000 - FINAL

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McKayla
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187658
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PHSC 1000 - FINAL
Updated:
2012-12-06 21:21:30
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Physical Science Final review
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Physical Science - Final review - Pro. Benson
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  1. How do we learn?
    • 1. Authority: parents, teachers, books, & organizations
    • 2. Intuition: hunches, insights, extrasensory knowledge 
    • 3. Reason(ing): from self-evident truths to logical conclusions
    • 4. Sensory Data/Senses; Knowledge filtered through senses, must detect something to study & describe it. 
  2. A physical world seperate & distint from our minds. 
    Existence : Self-evident Truths
  3. Events in the physical univers have natural causes. 
    Causality : Self-evident Truths
  4. The laws of nature are the same every where in the universe.
    Position Symmetry : Self-evident Truths
  5. The laws of nature have remained the same through time. 
    Time Symmetry : Self-evident Truths
  6. Of two contradicting propositions.  Both cannot be true.
    Noncontradiction : Self-evident Truths
  7. When alternative explinations of phenomenon are availiable; choose the simplest. 
    Occam's Razor : Self-evident Truths
  8. 10 to the negative get smaller 
    10(-5) : One celled Organisms, Bacteria 
    10(-6) : Viruses
    10(-8) : Molecules
    10(-9) : Atoms
    10(-14) : Nucleus protons, Neutrons
    10(-16) : Quarks
    10 to the positive get bigger
    10(26) : Universe
    10(24) : Galaxie cluster
    10(21) : Galaxies 
    10(17) : Distance to nearest stars
    10(13) : Solar Systems 
    10(10) : Stars
    10(8) : Planets
    10(6) : Continets
    10(4) : Mountains
    10(0) : Plants, Animals, People 
    Componets of the Universe 
  9. Force                          Relative Strength           Range
    Nuclear strong                    10(38)              Atomic nuclei 
    Electromagnetic                  10(36)              Earth Diam. 
    Nuclear weak                     10(25)              Atomic  
    Gravity                                   1                   Entire universe
    The four fundamental forces
  10. No Net Force : it will remain at rest or continue to move in uniform motion. 
    First Law
  11. Net Force : Acceleration of an object is directly proportional. 
    Second Law
  12. Source of Force : always from interactions between objects.
    Third Law
  13. Mosquito & Big Mack truck
    When two objects hit, the first object pushes as hard as the second at the point of interaction.
    Third law : Source of Force 
  14. <M(1) M(3)>
              Y

    Fx M(1)M(3)
                Y

    Fx M(1)M(3)
              Y(2)
    Gravitational Form 
  15. Q           q  
           Y

    F = K Qq 
               d(z)
    Electric Force Law Form 

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