Pressure in Gases and Atmospheric Pressure (Leaving Cert Physics): Flashcards
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12 cards from this deck
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Practise the cards
12 cards from this deck
Pressure formula for gases (constant density)
Pressure formula for gases (constant density)
Direction gas pressure acts on surfaces
Direction gas pressure acts on surfaces
Perpendicular (at right angles)
Gas pressure equality at any given point
Gas pressure equality at any given point
Equal in all directions
Standard atmospheric pressure at sea level
Standard atmospheric pressure at sea level
Pa
Instrument to measure atmospheric pressure
Instrument to measure atmospheric pressure
Barometer
Atmospheric pressure change with altitude
Atmospheric pressure change with altitude
Decreases as altitude increases
Formula for force from pressure
Formula for force from pressure
(Force = Pressure × Area)
What creates atmospheric pressure
What creates atmospheric pressure
Weight of air above Earth's surface
Weather from high-pressure systems
Weather from high-pressure systems
Clear, stable weather
Weather from low-pressure systems
Weather from low-pressure systems
Clouds and storms
Gas pressure change with depth
Gas pressure change with depth
Increases with depth
Gas density compared to liquids
Gas density compared to liquids
Much smaller than liquids