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2 cards from this section. Quick, good the night before a test.
What is the definition of pressure?
Think about how pressure relates to forces and areas.
What is gauge pressure?
Consider how we measure pressure in everyday applications.
What principle does Pascal's law express?
Consider how pressure behaves within a confined space.
True or False: Gauge pressure is always measured below atmospheric pressure.
Recall the definitions of gauge and vacuum pressures.
A mercury barometer shows a height of 760 mm. Calculate the atmospheric pressure in pascals.
Use the known parameters of density and gravity to find the force per unit area.
In a sealed container, gauge pressure is measured to be 300 kPa. What is the absolute pressure if the local atmospheric pressure is 100 kPa?
Remember the relationship between gauge and absolute pressures!
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