MCAT Phys

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Author:
nextMD
ID:
191791
Filename:
MCAT Phys
Updated:
2013-01-10 11:40:44
Tags:
MCAT Phys Chapter
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Description:
MCAT Phys Chapter 2
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  1. pico - p
    10-12
  2. nano - n
    10-9
  3. micro - 
    10-6
  4. milli - m
    10-3
  5. centi - c
    10-2
  6. kilo - k
    103
  7. mega - M
    106
  8. giga - G
    109
  9. Displacement
    • position = positionfinal - positioninitial
    • Vector (magnitude and direction)
    • net distance traveled, regardless of path taken
    • units = meters
  10. average velocity
    • = displacement/time
    • v = x/t
    • v = d/t
    • Vector (magnitude and direction)
    • units = m/s
  11. Speed
    • Total distance traveled/time
    • Scalar (magnitude only)
    • Can never be negative
    • units - m/s
  12. pythagorean theorem
    • c= a2 + b2
    • 5 = 3 + 4
    • 13 = 5 + 12
  13. acceleration
    • change in velocity/time
    • a = v/t
    • object can accelerate even if speed is constant
    • Vector (magnitude and direction)
    • units = m/s2
  14. Big Equations - assuming acceleration is constant
    • x = xo + vo + 1/2at2
    • v = v+ at
    • v2 = vo2 + 2ax
    • x = xo +vot

  15. slope of a x vs t graph
    gives velocity
  16. slope of a v vs t graph
    gives acceleration
  17. area under v vs t graph
    gives displacement
  18. Sin 0
    0
  19. Sin 30
    • 0.5 
    • 1/2
  20. Sin 45
    • 0.71
    • 1/
  21. Sin 60
    • 0.87
    • /2
  22. Sin 90
    1.0
  23. Sin 180
    0
  24. Cos 0
    1.0
  25. Cos 30
    • 0.87
    • /2
  26. Cos 45
    • 0.71
    • 1/
  27. Cos 60
    0.5
  28. Cos 90
    0
  29. Cos 180
    -1.0

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