Chapter 2.3 Flashcards
1
Q
Fluid
A
liquid or gases that have freely moving molecules
2
Q
pressure
A
amount of force exerted
3
Q
pascal
A
unit of pressuse
4
Q
atmospheric pressure
A
pressure caused by the atmosphere
5
Q
bouyant force
A
upward force that keeps objects immersed in a liquid
6
Q
Archimedes principal
A
bouyant force is an upward force that is equal to the weight of the force
7
Q
Bernoulli’s principal
A
pressure in a fluid decreases as the fluid’s velocity increaes
8
Q
Lift
A
an upward force on an object that moves in a fluid
9
Q
thrust
A
the pushing or pulling force exerted by the engine of an aircraft
10
Q
drag
A
force parallel to the velocity of the flow
11
Q
pascal’s principal
A
the principal that states a fluid in equilibrium contained in a vessel exerts a pressure of equal intensity in all directions
