As the balloon rises the volume of the balloon

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Explain how atmospheric conditions allow this to happen. As the balloon rises, the volume of the balloon expands because atmospheric pressure is lower at higher altitudes. It is atmospheric pressure that determines the size of the balloon. As altitude increases within the troposphere, temperature drops. Can this explain why the balloon gets larger? Section 3: Pressure Calculations 1. List 5 pressure units. inches Hg, mm Hg, psi, kPa, atm 2. Define pressure with a formula. 3. A person steps on your foot ouch! Explain which would hurt less… a flat shoe or a high-heeled shoe. A flat shoe would hurt less, because the person’s weight is acting on a larger area, so the pressure drops. To the right is a picture of a mercury barometer. A barometer uses air pressure, pushing on the pool of mercury in the dish, to support a column of mercury in the inverted test tube. Under normal atmospheric pressure, atmospheric pressure is strong enough to support a column of mercury 760 mm high, or 29.9 inches high. The weather reports in the US report air pressure in units of inches Hg. 4. If the atmospheric pressure drops, does the height of the column increase or decrease? The height of the mercury drops. 5. Complete Building Skills 2, on p.255. Write the answers below: 1 (a). Yes, each brick exerts the same force. 1 (b). No, the brick lying flat exerts a lower pressure. 2.
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