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Transcript of Measurement
there are several prefixes that you will need to know
kilo (k) = x 1000
hecto (h) = x 100
deca (da) = x 10
the base unit (m, L, or g) = x 1
deci (d) = x 1/10 or .1
centi (c) = x 1/100 or .01
milli (m)= x 1/1000 or .001
micro ( )= x 1/1,000,000 or .000001
Conversions from one unit to another are often necessary
In the metric system when we convert units we are either multiplying or dividing by some multiple of 10
Frequently Used Metric Equalities
1 km = 1000 m
1 m = 100 cm
1 m = 1000 mm
NOTE: meters (m) can be changed to any other base unit (liters L or grams g)
Scientists use the metric system when taking measurements
How many basic units are there in the metric system?
The 3 BASE units we will work with are:
meter - measures length
liter - measures volume
gram - measures mass
Goal Posts are used to help set up the equation.
Let's use English units in the 1st example
ex: 100ft = ? in
849 x 1 = 849
849 / 1000 = .849
.849 x 1 L = .849 L
.849 L / 1000 = .000840 L