Identify Prefix and
or Derived Unit of Measure TOGETHER
milli is 1 one thousandth (0.001)
centi is 1 one hundredth (0.01)
is 1000 times
WRITING IS EASY
place the prefix in front of the
or derived unit
(millimeter), cm (centimeter),
(kilometer) or mg (milligram) kg (kilogram)
(milliliter) for example.
The size or quantity is indicated by the
or prefix symbol
and the second letter
or symbol identifies the
base or derived unit.
Note: Where symbols
are used convention has it that they are
always lower case letters except where the Base Unit is named after a person like
Celsius (°C), Pascal (P) or
Newton (N). Then the symbol is noted by a CAPITAL LETTER.
with a capital letter "L" for liter when the capital letter is
supposed to be for a persons name?
technology came along it became apparent that typewriters were not
equipped with the script
so attempts were made
to use the
lower case "l" (el).
Then it became further confusing to write "1l"
(lower case "el") as the "1" and
"l" (el) looked too similar
as did the capital "I" (eye).
So the capital "L"
was chosen as the symbol
the derived base unit "liter".
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