# Prefixes and Equations

Topics: Orders of magnitude, SI prefix, Kilometre Pages: 2 (273 words) Published: May 21, 2013
Prefixes and Equations
1mL = -1x10 3 L = 0.001L
1 kilometers (1km) = 1000m (1x103 m)
1 kilometer (1KL) = 1000L (1x10 3 L)
PrefixesSymbolNumerical ValueScientific NotationEquality Kilo| K| 1000| 103| 1km = 1x103m 1m = 1x10-3Km|
Mega| M| 1 000 000| 106| 1Mg = 1x106g1g = 1x10-6Mg|
Giga| G| 1 000 000 000| 109| 1Gm = 1x109m1m = 1x10-9Gm| Tera| T| 1 000 000 000 000| 1012| 1Ts = 1x1012s1s = 1x10-12Ts| Deci| d| 0.1| 10-1| 1dL = 1x10-1L1L = 1x101dL (10dL)|
*These are connected*
Centi| C| 0.01| 10-2| 1cm = 1x10-2m1m =1x102m(100m)|
Milli| m| 0.001| 10-3| 1ms = 1x10-3s1s=1x103ms(1000ms)| Micro| µ (mu)| 0.000001| 10-6| 1µg = 1x10-6g1g = 1x106µg| Nano| n| 0.000000001| 10-9| 1nm = 1x10-9m1m = 1x109nm| Pico| P| 0.000000000001| 10-12| 1ps = 1x10-12s1s = 1x1012ps|

1. Measuring the Length
* 1m = 1000cm = 1x102cm
* 1m= 1000mm = 1x103mm
* 1cm = 10mm = 1x101mm
2. Measuring the Volume
* 1L = 10dL = 1x101dL
* 1L = 1000mL = 1x103mL
* 1dL = 100mL = 1x102mL
* 1mL = 1cm = 1cc These are all the same (Notations)
3. Measuring the Mass
* 1Kg = 1000g = 1x103g
* 1g = 1000mg = 1x103mg
* 1mg = 1000µg = 1x103µg

Writing the Conversion factors
To convert you will have to put one in the Numerator and Denominator Example.
1hr = 60min
60min1hr or 1hr60min
60min per 1hr or 1hr per 60min

Example.
1lb = 454g
454g1lb or 1lb454g
Example.
1 tablet = 500mg of vitamin C
500mg of vitamin C/ 1 tablet
1 tablet/ 500mg of vitamin C

Example.
164lb kg = ?
Given unit (x) one or more conversion factors = Needed Unit (will always be in the numerator) 164lb x 1kg2.20lb =
164 (x) 1kg2.20 =
74.5454kg (74.5kg)