Scientific Measurments: Systems International (SI)
☈ Length- Meters (m)
☈ Weight- Kilograms (Kg)
☈ Volume- Liters (L)
☈ Time- Seconds (s)
☈ Electric Current- Amperes (amp)
☈ Temp.- Kelvin (K) *absolute zero = -2730 K
☈ Amount of Sub- Mole (mol)
☈ Luminous Intensity- Candela (Cd)
Prefixes:
Prefix Symbol Meaning Multiplier
(numerical) Multiplier
(exponential)
Mega M Million 1,000,000 1 x 106
Kilo k Thousand 1,000 1 x 103
Meter, Grams, Liters m, g, L None None 1 x 100
Deci d Tenth 0.1 1 x 10-1
Centi c Hundredth 0.01 1 x 10-2
Milli m Thousandth 0.001 1 x 10-3
Micro Millionth 0.000001 1 x 10-6
Nano n Billionth 0.00000001 1 x 10-9
Pico p Trillionth 0.000000000001 1 x 10-12
Significant Figure Rules:
1. Digits other than zero are always significant.
96L 61.4g 4.512g
(3sf) (3sf) (4sf)
2. Zeros to the right to the decimal are significant when they have a number preceding them that is not zero.......
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