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(common base units (Ampheres (amps) - current, liter r(L) - volume, meter…
common base units
Ampheres (amps) - current
liter r(L) - volume
meter (m) - length
gram (g) - mass
Kelvin (K) - temperature
Second (s) - time
mole (mol) - Substance Amount
Joule (J) - Energy
uses prefixes and unites
kilo (K) - 1,000 base units
Hecto (H) - 100 base units
Deka (D) - 10 base units
Base UNIT = 1 base unit
deci (d) - 1/10th base unit
centi (c) - 1/100th base unit
Mili (M) 1/1000th base unit
Significant figures
non zeros
ever y nonzero number is significant
examples
7,432 = 4sig figs
24.7 = 3 sig figs
zero sandwich
zeros between nonzero numbers are significant
examples
400.79 = 5 sig figs
7,0003 = 4 sig figs