Saturday, February 4, 2012

Quantities and units


Quantities and units
Amount of something that can be measured or calculated and expressed as numbers and units. Kinds of quantities: 
A. Principal amount of 
Quantity that does not depend on other quantities 

Quantities and units
B. Magnitude of the derivative 
The quantity of units derived from the amount of principal units. 

C. Scalar 
Quantity that only has a large value only and does not have a direction. Example: mass, speed, pressure, time, and others. 

D. A vector 
Quantity that has magnitude and direction values. Example: displacement, force, velocity, momentum, and others.

Quantities and units

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