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LSH PS Unit 1B

Standards & Measurements

TermDefinition
Precision How consistent results are
Accuracy Closeness to actual value
Meter The SI unit for distance or length
Kilogram The SI unit for mass
Second The SI unit for time
Ampere The SI unit for electrical current
Kelvin The SI unit and system for measuring temperature
Mole The SI unit for the number of particles in a substance
Candela The SI unit for measuring luminous intensity (brightness)
kilo- SI/metric prefix meaning 1000
deci- SI/metric prefix meaning 1/10 (one tenth) 0.1
centi- SI/metric prefix meaning 1/100 (one hundredth) 0.01
milli- SI/metric prefix meaning 1/1000 (one thousandth) 0.001
micro- SI/metric prefix meaning 1/1 000 000 (one millionth) 0.000001
nano- SI/metric prefix meaning 1/1 000 000 000 (one billionth) 0.000000001
metric base unit a metric unit with no prefix
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