Wednesday, January 19, 2011

Day Six: Activity Two

Describe some common weather occurrences in relation to the gas laws and characteristics we have been exploring.
On lakes the wind is strong because of the different temperatures.  There is an expansion of molecules because of the heat of the sun.  As the wind goes up the mountains it goes slower because of the cooler temperatures.  Then once it goes down the mountain to the desert it expands as the temperature gets warmer and the molecules will move faster, therefore a stronger wind.

What is the Bernoulli's Principle, provide an example or application of this.
Bernoulli's Principle states that as the velocity of a fluid increases, the pressure exerted by that fluid decreases.  Airplanes get a part of their lift by taking advantage of Bernoulli's principle. Race cars employ Bernoulli's principle to keep their rear wheels on the ground while traveling at high speeds.





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