LAB DE Biologia uno

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Author:
Kmagallon
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194464
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LAB DE Biologia uno
Updated:
2013-01-22 16:48:30
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LAB DE Biologia uno
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  1. SI prefixes
  2. How do scientists express measurements
    • in one or three digits numbers
    • ex: 1.5 cm can be shown as 15 mm
    •  rather than using 15,000 micrometers
  3. conversion factor
    • always equal 1 
    • ex: 1mile/ 5280
  4. Basic unit of length :
    meter

    one meter is aprox 39.4in
  5. SI units
    • Length: 1 in = 2.54 cm
    • Volume: 1.057 qt = 1 L
    • Mass: 1 lb = 453.6 g

    • Since length has many English units with different names, some other useful conversion factors for length are:
    • 39.37in = 1m

    • 1 mi = 1.609 km
    • Another useful conversion factor for mass is:

    2.2lb = 1kg
  6. The liter (L) is an established unit of volume in nations using the metric system. It is equal to one cubic
    decimeter. (Formerly defined as one kilogram of water.)
  7. surface area
    • Surface Area of a Cube = 6 a 2
    • Surface Area of a Rectangular Prism = 2ab + 2bc + 2ac

    Surface Area of Any Prism  (b is the shape of the ends)Surface Area = Lateral area + Area of two ends(Lateral area) = (perimeter of shape b) * LSurface Area = (perimeter of shape b) * L+ 2*(Area of shape b)


    Surface Area of a Sphere = 4 pi r 2

    Surface Area of a Cylinder = 2 pi r 2 + 2 pi r h
  8. volume
    capacity relation to meter........... amount of space occupied by an object.
  9. mass
    roughly weight relation to meter
  10. length
    is the distance from one point to another
  11. density
    The mass density or density of a material is its mass per unit volume.
  12. how to measure density
    density= ρ

  13. temperature
    F= 9/5C+32

    C=5/9(F- 32)

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