INTERNATIONAL SYSTEM OF UNITS (SI UNITS)
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15 Terms
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units
used to provide information about measured entity or result of a calculation
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When are units not expressed?
a ratio of quantities and so all the units cancel out
do not have true units and generally expressed without units
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mass
kilogram (kg)
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mass units used in lab
gram,mg,ng
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length
meter (m)
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length units in lab
centimeter, inches, nanometer, angstrom
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time
second (s)
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time unit used in lab
minutes
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amount of substance
mole (mol)
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amount of substance used in lab
mole (contains 6.022 × 10²³ molecules/ atoms AKA Avogadro’s Number
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tempeture
Kelvin (K)
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tempeture units in lab
centigrade
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electric current
ampere (A)
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electric current used in lab
milliampere
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luminous intensity
candela (cd)
not used in lab
Note 
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