International System of Units (SI) - The Metric system
International System of Units (SI) - Metric
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Length -- meter (m)
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Mass -- kilogram (kg)
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Time -- second (s)
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Temperature -- Kelvin (K)
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Amount of Substance -- mole (mol)
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Electric Current -- ampere (A)
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Light Intensity -- candela (cd)
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Electric Charge -- Coulomb (C)
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Sound Intensity -- Decibel (dB)
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Power -- Watts (W)
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Energy -- Joule (J)
Prefixes
1. mega- M 2. kilo- k 3. hecto- h 4. deca- da
5. deci- d 6. centi- c 7. milli- m 8. micro- µ
Proper Use of te SI System of Measurement
1. 75 cm (not 75cm) -- leave a space between the last digit and the unit.
2. 1.36 m (not 1.36 m.) -- don't put a period after the unit unless it is at the end of the sentence
3. 6 m (not 6 meters); six meters (not six m) -- use numbers and symbols together only!!
4. 0.25 cm (not 1/4 cm) -- use decimal fractions instead of fractions
5. 0.67 mm (not .67 mm) -- put a zero in front of a decimal if the number is less than 1