Ch. 1 - International System of Units - SI units
All ___________ prefix symblos are lower case letters
submultiple
Prefix _______ are printed in roman upright type
symbols
Each physical quantity has ____ ___ ________ __ ____, even if this unit can be expressed in _________ _____
- ... only one coherent SI unit - ... different forms
_______ units are defined as products of power of the ____ _____
- DERIVED -BASE UNITS
With the exception of __ ____, _ _____, and _ ____ all ________ prefix symbols are capital letters
- da deka - h hecto - k kilo -multiple
The number of _______ __________ of interest in science and technology can, of course, be extended _______ limit
- derived quantities - without
Non-SI units that are accepted for use with the SI
- minute [min] => time - liter [L] => volume - metric ton [t] => mass
Examples of SI coherent derived units whose names and symbols include SI coherent derived units with special names and symbols
- newton per meter [N/m] => surface tension - katal per cubic meter [kat/m3]
International System of Units (abbreviated SI)
-Is the modern form of metric system of measurement -is the world's most widely used system of units of measurement
The mole is the amount of _________ of a system which contains as many elementary entities as there are atoms in 0,012 kilogram of ______ __ It's symbol is ___
-substance -carbon 12 -mol
The SI consists of:
1. Set of coherent SI units: 1.A: 7 BASE UNITS of the SI 1.B: UNLIMITED NUMBER of coherent DERIVED units of the SI 2. the set of PREFIXES
Decimal multiples and submultiples of SI units, ranging from __ to __
10^24 to 10^-24
Prefixes _____ combined each other
NEVER
[true / false] :It is not possible to provide a complete list of derived quantities and derived units
TRUE
Prefix names and symbols are used with a number of non-SI units, but thez are never used with units of ____: minute, min; hour, h; day, d.
Time
[true / false]Among the base units of the international system, the kilogram is the only one whose name and symbol include a prefix
True
Multiples and submultiples (fractions) of the kilogram are names as though the ____ was the base unit
gram
