#1
What is any material that can flow and that takes the shape of its container?
Fluid
What does pressure depend on?
The depth of the fluid
what is an upward force on an object that opposes the downward pull of gravity?
lift
Less atmospheric pressure is found______
In the mountains
Standard atmospheric pressure is________
101,300 Pa.
What is the amount of matter in a given space?
density
What is this principle?
A change in pressure at any point in an enclosed fluid will be transmitted equally to all parts of that fluid
Pascals principle
What is the forward force produced by an airplane’s engines?
thrust
_________devices are devices that use liquid to transmit pressure from one point to another
Hydraulic
Fluids flow from_____pressure to_______pressure
high and low
What is The SI unit for pressure?
Pascal
What is this principle?
The buoyant force of an object in a fluid is an upward force equal to the weight of the volume of fluid that an object displaces
Archimedes Principle
What is the amount of force exerted on a given area?
pressure
_______is a gas that is less dense than air
Helium
In order to reduce drag, airplanes have_____
flaps
What is the force that opposes resists motion in a fluid?
Drag
What is this principle?
Fluid pressure decreases as the speed of the fluid increases
Bernoulli’s Principle
What is the pressure caused by the weight of the atmosphere
atmospheric pressure
Submarines move up and down by changing their______
density
The amount of lift created by a plane's wing is determined in part by the____of the wing
Size
What is the upward force that fluids exert on all matter?
buoyant force
Water is about______times more dense than air
1,000
Greater atmospheric pressure is found at______
sea level
Fish use a______ to change the amount of air thus changing their density.
swim bladder
How do u find pressure?
Take the force divided by the are