Wednesday, January 19, 2011

Day 6 Activity 2 1/18/11 Weather and Bernouli Principle

Describe some common weather occurrences in relation to the gas laws and characteristics we have been exploring.

What is the Bernoulli's Principle, provide an example or application of this.

Examples:


Notes:
-Air molecules get hooter and expand

2 comments:

  1. 1. Weather depends on the atmospheres pressure. According to this website Barometiric pressure changes the weather, which ultimately affects the earth. "The terms "rising" and "falling" as applied to barometric pressure refer to minor changes in atmospheric pressure with changes in weather. A "high pressure front" is one where the barometric pressure for a mass of air is slightly higher than average."

    Source: http://www.lakesidepress.com/pulmonary/books/scuba/sectiond.htm

    I also found some weather terms in relationship to the earths changes in weather:

    Advection Fog- a type of fog that results from the advection of moist air over a cold surface and the cooling of the air to its dew point that follows; this type of fog is most common in coastal regions.

    Air-mass Thunderstorm- Generally, a thunderstorm not associated with a front or other type of synoptic-scale forcing mechanism. Air mass thunderstorms typically are associated with warm, humid air in the summer months; they develop during the afternoon in response to insolation, and dissipate rather quickly after sunset.

    Blizzard- Includes winter storm conditions of sustained winds or frequent gusts of 35 mph or more that cause major blowing and drifting of snow, reducing visibility to less than one-quarter mile for 3 or more hours. Extremely cold temperatures often are associated with dangerous blizzard conditions.

    Flood- a condition that occurs when water overflows the natural or artificial confines of a stream or river; the water also may accumulate by drainage over low-lying areas.

    All the above weather terms and more can be found at: http://www.erh.noaa.gov/er/box/glossary.htm

    Weather is related to gas, because of the atmospheric pressure.

    2. The Bernouli Principle is related to why airplanes fly. According to Wikipedia the principle relates to the speed of fluids in relation to the decrease in pressure or decrease in the fluids energy.

    My example is a picture posted on the initial post.

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  2. 2. An application of Bernoulli's principle would be like a race car. Planes and Race cars are in a way similar because they both reach high speeds. Race cars reach these high speeds because it is very light. The cars also can reach very high speeds in relation to the principles. The same idea also go for speed boats.

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