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MEASUREMENTS & UNITS (MEASUREMENTS & UNIT SYSTEMS (International…
MEASUREMENTS & UNITS
MEASUREMENTS & UNIT SYSTEMS
Physical quantity
Standard
Magnitude
Unit
Measure
Direct
Undirect
Errors
Systematic
Random
Absolute
Relative
International System of Units
LENGHT- meter-
m
MASS- kilogram-
kg
TIME- second-
s
ELECTRIC CURRENT- ampere-
A
TEMP- kelvin-
K
LUMINOUS INTENSITY- candela-
cd
AMOUNT OF SUBSTANCE- mole-
mol
CONVERSION OF UNITS
DIMENSIONAL ANALYSIS OF QUANTITIES
Simplifies procedures
It helps to analyze ampler units
Useful in experiments of aeronautics, automotive design, construction
Detect errors
Confirms its validity
