19 terms

Science test: Pressure and density of fluids

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the unit of measurement for pressure is _______
pascal
a _________ is any substance that can flow and take the shape of the container that holds it
fluid
pressure ____________ when force is applied to a surface area that increases in size
decreases
atmospheric pressure changes with _________
elevation
density depends on mass and _______
volume
the underwater pressure at great depths in the ocean is ___________ the underwater pressure near the surface
greater than
a _______ fills an entire container regardless of the size of the container
gas
a buoyant force is an _______________ applied by a(n) __________ on an object in the fluid
upward force, fluid
the gravitational on an object is the object's ________
weight
A fluid applies pressure __________ to all sides of an object within the fluid, so an object in the water has pressure from the sides, top, and the bottom acting on it
perpendicular
Horizontal forces are ____________ in all ______________, so they cancel themselves out
equal, directions
pressure increases with _____________
depth
according to ____________________ , pressure applied to a fluid in a closed container increases in the same amount everywhere in the container
pascal's principle
when the speed of a fluid increases, the _____________ decreases
pressure
work is the product of ________ and distance
density
_________ is the ratio of force to area
pressure
a soccer player who scores a goal by kicking the ball so it flies in a curved path around the goalie is applying ___________
bernoulli's principle
mike flowing through a straw exerts ________ on all sides of the straw
pressure
_______________ oppose the motion of an object through a fluid
drag forces