Pressure Flashcards
What is pressure
The amount of force acting on a unit of area
What is the formula for pressure
Force
______
Area
Pressure triangle
Force
_________________
Pressure X area
What is pressure measured in
Pascal (pa)
N/m2 n/cm2
N/cm -2
Does pressure in fluid increase or decrease with depth
Increase
Does pressure increase or decrease in height
Decrease
How would you show pressure in fluid increases in depth
Water bottle
Poke holes
Bottom holes shoots water further
Does air have mass
Yes
Does air have volume
Yes
Does air occupy space
Yes
Can air’s mass and space be measured
Yes
What is the average value of atmospheric pressure
76cm of mercury
What is an altimeter
Measures height by using atmospheric pressure (on planes)
What are areas of high atmospheric pressure represented on a weather chart with
A h
What does high atmospheric pressure bring
Dry,clear, settled weather