Fluid Pressure Flashcards
Larger surface area
less pressure
smaller surface area
high pressure
substance that can easily flow
fluid
T OR F
In fluids, molecules are constantly moving in all directions and colliding with each other and any surface they meet.
true
net force of the molecules in a fluid colliding with the walls.
pressure
A fluid in a container presses with an outward force against the walls of that container
Pressure
SI unit
N/m^2
total force exerted by the fluid divided over the area over which the force is exerted.
fluid pressure
T OR F
they are always exerted perpendicular to any surface.
true
one limb of the device is open to the atmosphere it records the pressure of the source connected to the other limb
manometer
pressure gauging devices using columns of different liquids.
manometer
The fluid whose pressure is to be determined
metered fluid
device meant for measuring the local atmospheric pressure.
barometer
equation for absolute pressure
p= Pa + pgh
positive for pressures above atmospheric pressure, and negative for pressures below it
gauge pressure
