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3 cards from this section. Quick, good the night before a test.
What is the SI unit for measuring air pressure?
Think of what unit is used in physics for force per area.
What happens to air pressure as altitude increases?
Recall the relationship between height and pressure.
What is the standard atmospheric pressure at sea level?
Think of typical atmospheric conditions and standard values.
True or False: Air pressure increases with altitude.
Recall how altitude influences pressure.
Calculate the air pressure at an altitude of 3000 m with air density of 1.2 kg/m³.
Substitute values into the formula carefully.
Discuss how varying altitude in a weather balloon affects its operation.
Think about pressure differences and balloon materials.
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