2006-09-03 14:33:22 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The SI system INCLUDES both METRIC and non-metric units.
The units in the SI system come from the decisions of a committe, while the units in the metric system are all base 10.
If you were to put the 2 systems' units into a Venn diagram, you would have 2 circles that partially overlap.
But even though the SI system includes non-metric units, it's more like they're tolerated rather than liked. Units other than from the metric system (base 10) are harder to learn & use.
The base units of the SI system ( http://physics.nist.gov/cuu/Units/units.html : metre, kilogram, second, ampere, kelvin, mole, candela) come from PART of the metric system.
The many derived units of the SI system come from algebraic definitions involving the base units ( http://www.alcyone.com/max/reference/physics/units.html , http://physics.nist.gov/cuu/Units/units.html , http://www.unc.edu/~rowlett/units/sipm.html ).
The few "non-metric" units of the SI system that are tolerated are because of historical reasons -- they have been used so widely that the people who decide on units in the SI system (the General Conference on Weights and Measures CGPM) have reluctantly kept them ( http://www.unc.edu/~rowlett/units/sipm.html ).
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2006-09-03 15:09:51 · answer #1 · answered by BugsBiteBack 3 · 0⤊ 0⤋
Si Metric System
2016-10-05 03:11:49 · answer #2 · answered by ? 4 · 0⤊ 0⤋
SI stands for International System of Units (in French it is Système Internationale de Unités) is based on the metric system for measuring length and mass using the metric system of measurements (see Table).
However, as you can see from the table the base units cover a lot more scientific measurements than just length and mass.
Scientists have decided that these units are the ones to be used in all scientific reports in order to standardize measurements and to make the data and results understandable to all.
SI base units (Name Symbol Quantity)
kilogram kg Mass
second s Time
metre m Length
ampere A Electrical current
kelvin K Thermodynamic temperature
mole mol Amount of substance
candela cd Luminous intensity
The metric system based upon the meter was set up in 1791 by the French National Assembly, and there is an iridium bar that is the standard for the manufacture of all meters, stored in the International Bureau of Weights and Measures in Sèvres, France.
2006-09-03 15:05:25 · answer #3 · answered by random.acts 3 · 3⤊ 0⤋
the metric system is base for the first three from every three up and down and base 1000 next those but si system gathers both base 10 and non base 10
2016-11-02 06:33:24 · answer #4 · answered by Dr caaqil 1 · 0⤊ 0⤋
metric is base 10, and is commonly used in most scientific labs
2006-09-07 05:55:57 · answer #5 · answered by shiara_blade 6 · 0⤊ 0⤋
Dont listen to these clowns. The SI system IS the metric system
2006-09-03 15:03:55 · answer #6 · answered by jloos1977 3 · 1⤊ 8⤋
metric is logical. it is used by the entire world except the USA.
it is scientific and easy to use and makes more sense.
SI is an old english system based on feet, thumbs, fingers, eyes and ears....just kidding. but it's alsmost as primitive.
i hope the USA will soon change over and get into the 21st century and adapt the metric system
2006-09-03 14:39:51 · answer #7 · answered by Anonymous · 0⤊ 9⤋
metric is base 10 and si is base 12 for length
2006-09-03 14:36:24 · answer #8 · answered by Steven C 3 · 0⤊ 7⤋
similarities: they both measure stuff difference: they use different units
2016-03-17 01:26:06 · answer #9 · answered by Anonymous · 0⤊ 0⤋