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PHISICAL QUANTITIES - Coggle Diagram
PHISICAL QUANTITIES
A physical quantity is a property of a material or system that can be quantified by measurement
Measurement
is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events.
INTERNATIONAL SYSTEM OF UNITS
: This system reduces all physical measurements to a mathematical combination of seven base units.
A physical quantity can be expressed as the combination of a numerical value and a unit
are classified according to
possibility of decomposition
fundamentals
The fundamental quantities are the independent physical quantity, which also helps derive and found the other physical quantities.
Mass
The SI unit of the mass is kilogram.
Length
. The SI unit of the length is meter.
time.
Its SI unit is second.
Electric current
Its Si unit is ampere.
Temperature
Its SI unit is kelvin.
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derivative
may be expressed in terms of base or derived quan- tities by means of the mathematical symbols of multiplication and division only
area
volume
density
parameters needed to define them
scalar
Scalar quantities have only a magnitude
vectorial
vectorial quantities have two characteristics, a magnitude and a direction.