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ALL ABOUT DAT PRESSURE :P
EXECUTE ORDER 9.2
RANDOM QUESTIONZ
NATURAL FLUID SYSTEMS
ITZ SO NATURAL
CHECK UR VOCABULARY
100
Define buoyancy
The tendency of objects and fluids to rise or sink, because of density differences with their surroundings.
100
What is static pressure?
Squeezing an enclosed fluid creates static pressure, that allows a fluid to apply a force.
100
What are the differences between a hydraulic system and a pneumatic system?
Pneumatic system: an enclosed gas transmits a force, causing motion. Hydraulic system: are devices that create pressure that moves through a liquid
100
How to pronounce sphygmomanometer
sphygmomanometer, DUH
100
Define sphygmomanometer
It measures blood pressure by applying enough pressure to an artery in you arm to briefly stop the flow of blood.
200
Why is the fluid from the bottom hole forced out farther than the fluid from the top hole?
Because the greater the depth of the fluid the greater the pressure.
200
List two examples each for hydraulic system and pneumatic system.
hydraulic: -squeeze a tube of tooth paste -turn on the water tap pneumatic: -fill tires -drill teeth
200
How are blood vessels like pipelines?
Blood vessels are like pipelines that carry the blood to all parts of the body.
200
How is the circulatory system like a water ballon?
Because when your heart pumps blood through the circulatory system, the pressure of the push moves through the blood.
200
A sheet of muscle in the lower chest that moves downward as you breathe.
diaphragm
300
Is the air pressure greater at the base of the mountain or the top of the mountain? Why?
Base, air is more dense near sea level.
300
Can the hydraulic and pneumatic system work if they lose pressure? Why?
Because the systems use gas or liquid under pressure to apply a force in order to move something, so if there is no pressure non of that above will happen.
300
Why is water pumped into a submarine?
Submarines have large ballast tanks that can be filled with water, adding weight to the sub and allowing it to submerge. They use compressed air to blow the water out letting it surface. Varying the amount of water in the ballast tanks changes the buoyancy of the sub allowing it to go to different depths.
300
Name one cause for high blood pressure and low blood pressure.
Arteries getting blocked
300
Energy that can be used directly to perform tasks
Dynamic pressure
400
One way to express the atmospheric pressure at sea level?
The atmospheric pressure at sea level is 101.3 kPa , also called one atmosphere (1 atm).
400
What are some challenges to designing an effective hydraulic system?
Some challenges to designing an effective hydraulics system are the pipes smoothness, size, and how affectionately you connect the different pipes.
400
How do hydraulic systems allow you to perform a task at a distance?
If you could apply pressure to water in a pipe at one location and the force could perform a task in another location. The force of the water spraying out of the hose is the result of pressure applied to water in a pipe many miles away.
400
What happens when you exhale and inhale?
exhale: the air pressure inside your lungs gets higher so air is pushed out of your lungs inhale: when the chest cavity expands, an area of low pressure is created, higher pressure air from the atmosphere rushes into the lungs
400
What is convection?
Convection is vertical movement of fluid caused by density differences.
500
Why does a juice box collapse inward when you drink from it?One way to express the atmospheric pressure at sea level?
Because you are taking the air out of it which collapses the walls. The walls collapse because the air pressure on the outside is greater than the air pressure on the inside and the air pressures try to balance out.
500
How does a vacuum cleaner work?
A vacuum uses the pneumatic system and has a motor that spins had high speeds that creates a low pressure area within the vacuum where the air of higher pressure gets sucked in.
500
What are check valves?
They are valves that allow fluids to flow in only one direction
500
What happens in an asthma attack
the pathway to the lungs to narrow, making it difficult to breathe.
500
Define barometer
an instrument measuring atmospheric pressure, used especially in forecasting the weather and determining altitude.