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Fluids
Question | Answer |
---|---|
defined as the force per unit of area | pressure |
force is measured in | newtons |
the weight of the air pushing down on itself and on Earth's surface | atmospheric pressure |
average pressure exerted by the atmosphere at sea level | 100 kPa |
fluids in a closed system | confined fluid |
blood moving through your body is a | confined fluid |
confined pressurized system that uses moving liquids | hydraulic system |
a confined, pressurized system that uses moving air or other gases such as carbon dioxide | pneumatic |
the force to be transmitted from one particle to another, that volume that the gas occupies must be reduced | compression |
the state where particles are far apart | gas |
gases can be easily reduced into | volume or compressible |
the human body is this percent of water | 66 |
most efficient natural hydraulic system | human circulatory system |
transports blood through the body | human circulatory system |
pipelines that carry the blood to all parts of the body | blood vessels |
force of the blood on the walls of the blood vessels | blood pressure |
measures blood pressure by applying enough pressure to an artery in your arm to briefly stop by the flow of blood | sphygmomanometer |
blood vessels that carry oxygenated blood away from your heart | arteries |
largest artery in your body | aorta |
smallest arteries | arterioles |
network of tiny blood vessels that act like a highway interchange | capillaries |