PPT-15.2 Air Pressure

Key Concepts What are some of the properties of air What instruments are used to measure air pressure How does increasing altitude affect air pressure and density Key terms Density pressure air pressure barometer mercury barometer aneroid barometer altitude. Set-Up and Safety. High-Pressure Air Bags. This PowerPoint is intended as a general review of high-pressure air bag set-up and safety practices.. There are various different air bag systems currently used in Snohomish County. Always refer to your departments SOP/SOG’s as well as manufacturers recommendations prior to use.. Air molecules are moving constantly! They bounce off everything like rubber balls! They are bouncing off your body and everything around you right now!. Each time an air molecule bounces off an object, it pushes (EXERTS FORCE) on that object. When billions of air molecules bounce off a surface, the force is spread over the area of that surface.. Defined as the force exerted on you by the weight of tiny air . particles . in . the atmosphere per unit area.. Earth’s atmospheric pressure = 14.7 pounds per square inch OR 1 kilogram per square centimeter. 1. Physics 1. Air Pressure 2. Air Pressure and Altitude 3. Weather Fronts 4. Barometric Pressure 2. Kestrel Altimeters 1. BARO Function 2. ALTITUDE Function 3. Examples 1. Monitoring Barometric Pressu Pressure is defined as a force per unit area, and can be measured in units such as psi (pounds per square inch), inches of water, millimeters of mercury, Pascal (Pa, or N/m²) or bar. Until the introduction of SI units, the 'bar' was quite common.. Low Pressure. H is for . “HIGH PRESSURE”. H is for . HEAVY. BLUE = . COOL. Cool air . contracts. Cool air sinks . because COOL air is HEAVIER. Sunny but slightly cooler weather. Heavy shoves clouds out of the way. 2. The denser the atmosphere…. the greater its weight, and . the greater its air pressure.. 3. atmospheric pressure -. . a.k.a. .; . barometric pressure or air pressure.. the pressure due to the weight of the overlying atmosphere.. Understand the relationship between pressure, force, and area.. Solve problems about pressure.. Investigate the relationship between pressure and depth in a liquid.. Show that air has mass and occupies space.. H is for . “HIGH PRESSURE”. H is for . HEAVY. BLUE = . COOLER. Cool air . contracts. Cool air sinks . because COOL air is HEAVIER. Sunny but slightly cooler weather. Heavy shoves clouds out of the way. 19.1 Understanding Air Pressure. Don’t notice change in your day to day activities. Mostly cause-and-effect relationship. Air pressure causes wind. Wind brings change in temperature/humidity/precipitation. What is the ultimate energy source for most wind?. Do Now. What is the ultimate energy source for most wind. ?. The Sun. Do Now. Coriolis Effect. Humidity. Isobar. Friction. Key Words. Air Pressure. Barometer. Vanderbilt Student Volunteers for Science. Training Presentation. Spring 2019. IA. What is the . Atmosphere. ?. Write the following terms on the board: atmosphere, air pressure, vacuum. EVERYONE MUST WEAR GOGGLES!. The horizontal distribution of air pressure on the globe is studied on the basis of Isobars. If we look at the globe then it appears that there is certain definite system of high and low pressure.. If, for generalization, the globe is considered to be homogeneous (either of land or water), then there should be regular and systematic zonal distribution of high and low pressure but the regularity of pressure belts is distributed due to unequal distribution of land and water on the globe. . Looking for customised comfort solutions for your air conditioning needs? Walker Air Conditioning in Erina on the Central Coast of NSW has got you covered!

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