Physics and chemistry

Physics and chemistry

1. THE SCIENTIFIC METHOD

   • STAGES
     • Making an observation
       • Formulating hypothesis
         • Experimenting
           • Writing experiment's results
             • Presenting theories
   • Are the stages that scientifics follow to investigate something.

2. QUANTITIES

   • BASE
     • International system of units
       • Mass
         • kilograms
       • Time
         • seconds
       • Temperature
         • kelvin
       • Electric current
         • ampere
       • Luminous intensity
         • candela
       • Amount of substance
         • mole
       • Length
         • metres

3. NUMBERS

   • Scientific notation
     • One whole number and any number of decimals times 10 do the X power
       • 120000=1,2x10 to the 5 power
       • 0,0045=4,5 x 10 to the -3 power
   • Change of units
     • g to dg= g x 10
     • square m to square dm= square m x 100
     • 1L=1 cubic dm

4. RESULTS AND CONCLUSIONS

   • Tables
     • Each column with one of the variables
   • Graphs
     • Colocation
       • Independent variable in the horizontal X axis
       • Dependent variable in the vertical y axis
     • Types
       • Quadratic proportionality
         • Ccurved line
       • Direct proportionality
         • Straight line