Dimensional analysis, derived units and density - Lawto Corrigan per. 6

         After investigating some of the ck-12 modalities, the first major thing I learned was about conversion between units of measurement. I never knew how easy it could potential be using the simple fractions strategy. Not to mention the metric system compared the standard used in America is totally different, which does not make life any easier. The technique is formally called dimensional analysis, and I believe we has some practice with it in class. Dimensional analysis is a nifty strategy that is used for things ranging from scientists building atomic bombs to chefs whipping up meals. 

 Another interesting thing I learned more about are derived units. The definition of a derived unit is a unit that results from a mathematical combination of SI base units. A couple examples of measurement that require derived units would be volume (m^3), speed (m/s^2) and density (kg/m^3). The cool thing is that calculations involving derived units follow the same principles as other unit conversion calculations. I found some more information about density that I found intriguing as well. Density is the ratio of mass in an object to its volume. the equation to calculate density for a given object is Density = mass/volume. Density is measured in kg/m^3 typically, this is a derived unit. Out of the three main states of matter, solid, liquid, and gas, gas is the least dense.

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