Ch 13: Fluids Flashcards

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1
Q

A fluid exerts an upward buoyant force FB on an object immersed in or floating on the fluid. The magnitude of the buoyant force equals the ______ of the _____ displaced by the object.

A

weight of the FLUID

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2
Q

What is the formula for the buoyant force FB?

A

FB = ρf Vf g

  • ρf*represents the density of the fluid
  • Vf* represents the volume of the displaced fluid

g is gravity

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3
Q

Buoyant force does not depend on the _____ of the object underwater. It is the same at ___ ______.

A

depth

all depths

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4
Q

absolute pressure is equal to…

A

….gauge pressure + atmospheric pressure

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5
Q

Since fluid is incompressible, the volume flow rate through a tube must be constant. Since the volume flow rate is constant, ____ x _____ must be constant along the pipe. The fluid will move _______ where the area is _______, and therefore the radius is smallest.

A

area x speed

fastest, smallest

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