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Science Ch. 2 2

Terms

undefined, object
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A hydraulic system______ pressure?
Multiplies
Standard air pressure is
__________ inches of mercury.
29.92
When a driver rises to the surface from a great depth in the ocean, she is going from _____ to ______pressure.
High to Low
The foward force on a plane that helps it gather speed in order to take off is known as ________.
thrust
In a Hydraulic system, pressure is transmitted ______ in all directions through a ________.
Equally, liquid
A manometer measures _______ _______?
liquid pressure
Suction in a suction cup occurs b/c of ________ air pressure?
unequal
The air pressure on top of Mt. Everest is ______ than the air pressure on the bottom?
Lower
What is the reason an airplane is able to fly?
Bernoulli's Principle
The air resistance on plane during take off is called _________?
drag
As the speed of fluid increases, it's pressure ___________?
decreases
The force that is on the bottom of the wing during take off is called _______?
lift
The pressure on a plane's wing is greater on the _____ of the wings and less on the ____?
Bottom, top
As you go deeper in the ocean the pressure _______?
increases
As you go higher in elevation, pressure _______?
decreases
What type of weather will occur if a Low Pressure system is present?
wet, moist conditions
What type of weather will occur if a High Pressure system is present?
dry, fair weather
Why does air have pressure?
B/c of the wieght of the colum of air going up in the atmosphere
Fluids can be both _____ and ______?
liquids and gases
Streamlining an airplane reduces _________?
Drag
Manometer measures?
pressure of water
Barometer measures?
pressure of air
_______/------/_______
___A___ B ___c___
/------/
A= Faster
B= Slower
C= FAster
The principle behind hydraulic devices is that pressure is transmitted equally in all directions in a _______
Liquid
1. Barber chair
2. Backhoe shovel
3. Car breaking system
3 Examples of a Hydraulic

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