In the metric system, the base units relate to the dimension being measured: kilogram for mass, meter for length, second for time, ampere for electric current, and a few others. (see related link)
The liter is not an official SI unit but is commonly accepted as a unit of volume.
The prefixes represent a power of ten that is multiplied to give a unit of a certain value. See the related link for a table of prefixes. Some examples are kilo- (meaning 1000) gives kilometer (1000 meters) and kilogram (1000 grams). Milli- (derived from the Latin word for 1000, but meaning 1/1000 or 0.001); therefore, milligram is 0.001 grams, millimeter is 0.001 meters, milliliter is 0.001 liters, and millisecond is 0.001 seconds.
Any of the prefixes can be used with a unit, but some are more commonly used than others.
Prefixes can also be used with derived units which have special names. For example: kilowatt, kilopascal.
The basic prefixes deci, centi and milli decrease by powers of ten and deca, hecto and kilo increase by powers of ten.
Newtons is the basic metric system unit for weight
The basic prefixes deci, centi and milli decrease by powers of ten and deca, hecto and kilo increase by powers of ten.
centum - hundred centimeter
The metric system is based on a system of tens, so all the units in the system relate to each other in terms of tens. To the basic unit: 1000 milli= [unit] 100 centi= [unit] 10 deci= [unit] 0.1 deca= [unit] 0.01 hecto= [unit] 0.001 kilo= [unit]
In the metric system, the gram (g) is the named unit in the metric system which takes the various suffixes to measure larger or smaller amounts. However, the basic unit of mass in the SI system is the kilogram (1000g) which is used to define the size of a gram.
meter
the basic unit of weight in metric system; equal to 0.35 ounces
The kilogram is the Base Unit (not 'basic' unit) in the SI system (not 'metric system') for mass.
The basic unit of length in the metric system is the meter.
The basic lengths of the metric system ismilli,centi,gram,litre,metre,etc.
Gallons