Chap 11 Flashcards
Sum of gauge pressure and atmospheric pressure
Absolute pressure
Attractive forces between molecules of different types
Adhesive forces
Buoyant force on an object equals the weight of the fluid it displaces
Archimedes’ principle
Net upward force on any object in any fluid
Buoyant force
Tendency of a fluid to be raised or lowered in a narrow tube
Capillary action
Attractive forces between molecules of the same type
Cohesive forces
Angle (theta) between the tangent to the liquid surface and the surface
Contact angle
Mass per unit volume of a substance or object
Density
Minimum blood pressure in the artery
Diastolic pressure
Liquids and gases; a fluid is a state of matter that yields to shearing forces
Fluids
Pressure relative to atmospheric pressure
Gauge pressure
Condition caused by the buildup of fluid pressure in the eye
Glaucoma
Fluid pressure in the eye
Intraocular pressure
Stimulates the feeling of needing to urinate, triggered by bladder pressure
Micturition reflex
Change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid and the walls of its container
Pascal’s principle
Force per unit area perpendicular to the force, over which the force acts
Pressure
Weight of the fluid divided by the area supporting it
Pressure
Ratio of the density of an object to a fluid (usually water)
Specific gravity
Cohesive forces between molecules which cause the surface of a liquid to contract to the smallest possible surface area
Surface tension
Maximum arterial blood pressure; indicator for the blood flow
Systolic pressure
Maximum blood pressure in the artery
Systolic pressure
Minimum arterial blood pressure; indicator for the fluid balance
Diastolic pressure
