Lab instruments

INSTRUMENTS OF MEASUREMENT

Magnitude - instrument of measurement
  • Length: Ruler,Tape measure.
  • Time: Chronometer
  • Mass: Electronic scales
  • Temperature: Thermometer
  • Volume(for liquids): Test tube,Beaker,Flask,Pipette,Burette...

BRITISH UNITS

In 1960,The General Conference on Weights and Measures adopted the International System of Units. The SI system has five base units from which other units are calculated.


The most know are:



  • Length: Inch,yard...
  • Time: seconds...
  • Mass: pound,ounces...
  • Temperature: kelvin,Celsius...
  • Volume: gallon,cubic feet...

INTERNATIONAL SYSTEM (CONVERSION)

Length: mm ---> multiply by 0.039 ---> inches

Mass: kilograms ---> multiply by 2.202 ---> pounds

Temperature: Celsius ---> multiply by 1.8C + 32 ---> Fahrenheit

Volume: liters ---> multiply by 0.264 ---> gallons