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Study Help - (Measurements) -Metric - English-
« Thread Started on Oct 31, 2007, 8:53am »
Metric Measurements

Metrics is fairly simple once you get th hang of it. All metric conversions move in factors of 10 and have a designated prefix attached to each one.

The base measurements have no prefixes and begin at 1, with the exception of a select few.

Common metric units:
    Length - Meter (m)
    Mass - Gram (g)
    Volume - Liter (L)
    Time - Second (s)
    Energy - Joule (J)
    Force - Newton (N)
    Temperature - Celsius (°C) - Kelvin (K)
    Power - Watt (W)
    Electric Current - Ampere (A)
    Amount of Substance - Mole (mol)


Prefixes and unit measurements:
    giga (G) - 1,000,000,000 (109)
    mega (M) - 1,000,000 (106)
    kilo (k) - 1,000 (103)
    hecto (h) - 100 (102)
    deca (da) - 10 (101)
    no prefix - 1 (100)
    deci (d) - 0.1 (10-1)
    centi (c) - 0.01 (10-2)
    milli (m) - 0.001 (10-3)
    micro (μ) - 0.000001 (10-6)
    nano (n) - 0.000000001 (10-9)


So what does this all mean. Well lets use a common unit as a simple example: you are told that you have 1000 grams of sugar and you have to find the mass in the next unit of measure. So you look back at the chart and find the 1 kilo = 1000 base. All you need to do now is move the decimal point the appropriate number of spaces in the correct direction and add the prefix to the base. Giving you 1 kilogram of sugar.

visual:
    You have 1000 g
    1000 base = 1 kilo
    You have 1 kg

______________________________________________________________

English Measurements

Length
    12 inches = 1 foot
    3 feet = 1 yard
    220 yards = 1 furlong
    8 furlongs = 1 mile
    5280 feet = 1 mile
    1760 yards = 1 mile

Area
    144 sq. inches = 1 square foot
    9 sq. feet = 1 square yard
    4840 sq. yards = 1 acre
    640 acres = 1 square mile
    1 sq.mile = 1 section
    36 sections = 1 township

Volume
    1728 cu. inches = 1 cubic foot
    27 cu. feet = 1 cubic yard

Capacity (Dry)
    2 pints = 1 quart
    8 quarts = 1 peck
    4 pecks = 1 bushel

Capacity (Liquid)
    16 fluid ounces = 1 pint
    4 gills = 1 pint
    2 pints = 1 quart
    4 quarts = 1 gallon (8 pints)

Mass
    437.5 grains = 1 ounce
    16 ounces = 1 pound (7000 grains)
    14 pounds = 1 stone
    100 pounds = 1 hundredweight [cwt]
    20 cwt = 1 ton (2000 pounds)

Troy Weights
    24 grains = 1 pennyweight
    20 pennyweights = 1 ounce (480 grains)
    12 ounces = 1 pound (5760 grains)

Apothecaries' Measures
    60 minims = 1 fl.dram
    8 fl.drams = 1 fl.ounce
    16 fl.ounces = 1 pint[/lidt]

Apothecaries' Weights
    20 grains = 1 scruple
    3 scruples = 1 dram
    8 drams = 1 ounce (480 grains)
    12 ounces = 1 pound (5760 grains)


Note: Sorry, I'm really tired right now. I'll fix typos and incorrect information another time. Until then be cautious about the chart, because I'm too tired to check and see if I typed something incorrectly or not.
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