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4 cards from this section. Quick, good the night before a test.
What is a mercury barometer used for?
Think about what air pressure affects.
What happens to the height of the mercury column if the air pressure increases?
Remember the relationship between pressure and height.
What does a mercury barometer use to measure air pressure?
Think about which liquid can provide accurate readings in a tube.
A lower mercury column in a barometer indicates higher air pressure.
Remember the relationship between column height and pressure.
A mercury barometer at sea level reads 760 mm. If moved to a location with an altitude of 2000 meters, what would you expect the reading to be?
Consider how altitude impacts air pressure and mercury levels.
Explain the role of temperature in barometric readings and hypothesize what happens to the mercury in high temperatures.
Think about how heat affects gas volume and behavior.
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