Science Fluids Chapter or something

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Fluids Under Pressure

9.8

we use fluids in every day life work

hoses/fire pumps

used to make fluids leave a system with great force ( under pressure )

for example, backhoes use hydraulic rams

similar to syringes

9.7

the circulatory system is a closed hydraulic system

internal combustion engine

a device that provides power by burning fuel within its cylinders

prevents blood from backing up/pooling in veins

devices that control the movement of a fluid through a hollow tube or pipe

fluid filled. heart and blood vessels form a sealed compartment in the body ( closed )

9.4

Pascal's Law

states that a force applied to a fluid is distrubuted equally through all parts of the fluid

Blaise Pascal

French mathematician & physicist

atmospheric pressure

water

exerts pressure

exerts more pressure than air

decreases the higher you ascend, because of the less air above you

force exerted by the atmosphere

pressure

1 Pa = 1N/m2

P = F/A

force per unit area

9.5

when liquids are under pressure, their volume decreases as well as a gas

this when using rigid containers

large amount of gas in a small volume and when more gas particles are added, it creates collisions

causes the temperature to rise which makes the particles of a fluid move faster/farther apart. (fluid expands)

but the decrease in the liquid is barely noticeable

9.1

keep fluid moving at desired time/direction

Pneumatic

gases

air

an object that is able to be squeezed into a smaller volume

Compressibility

pressure gauge

monitors pressure within a system

valves

keeps fluid moving at desired time/direction

conductors

pathway to carry fluids

pump

fluids through a system

Hydraulic

liquids

Compress

Squeeze