Physics 4A, College of the Desert, Chapter 1.txt

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Mattyj1388
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33632
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Physics 4A, College of the Desert, Chapter 1.txt
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2011-06-16 14:19:36
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Physics4A Chapter1
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  1. Problem solving
    • [I SEE]
    • I = Identify
    • S= Set up
    • E = Execute
    • E = Evaluate
  2. Target Variable
    The quantity whose value you're trying to find.
  3. Identify
    Find out what is relivant, find target variable.
  4. Set Up
    The problem: figure out what tools to use (ie:equations), how to use them possably draw a sketch.
  5. Execute
    The solution: "do the math". List equations and variables, then solve the variables.
  6. Evaluate
    Your answer: does your answer make sence?
  7. Model
    A simplified version of a physical system that would be too complicated to analyze in full detail.
  8. Physical Quantity
    Any number that is used to describe a physical phenomenon quantitatively.
  9. Operational definition
    Defined by how we use them.
  10. 1 Kilometer
    = 1Km = 103 meters = 103 m
  11. 1 Sec
    Is the amount of time required for 9,192,631,770 cycles of this microwave radiation.
  12. Meter
    The distance that light traveles in a vacume in 1 / 299,792,458 secound.
  13. Nano
    10-9
  14. Micro
    10-6
  15. Milli
    10-3
  16. Centi
    10-2
  17. Kilo
    103
  18. Powers of 10
    • Yocto = 10-24 y
    • Zepto = 10-21 z
    • Atto = 10-18 a
    • Femto = 10-15 f
    • Pico. = 10-12 p
    • Nano. = 10-9 n
    • Micro = 10-6 u
    • Milli. = 10-3 m
    • Centi. = 10-2 c

    • Kilo. = 103 k
    • Mega = 106 M
    • Giga. = 109 G
    • Tera. = 1012 T
    • Peta. = 1015 P
    • Exa. = 1018 E
    • Zetta. = 1021 Z
    • Yotta. = 1024 Y
  19. Accuracy
    How close it is likely to be to the true value.

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