Physics and Physical Measurement

  • Created by: srivenck
  • Created on: 20-03-15 15:21

Fundamental units

7 quantities have these units.
Time = second
Length = metre
Mass = kilogram
Temperature = kelvin
Quantity of matter = mole
Electric current = ampere
Luminous intensity = candela

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Derived units

Combinations of fundamental units.

Examples: Newton, Volt

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Random uncertainty

Uncertainty due to the inexperience of the experimenter and the difficulty of reading instruments.

They can be reduced by repeated measurements and taking an average of the measurements.

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