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Ch. 4 Sec. 3

Bernoulli's Principle

When the speed of a fluid increases, the pressure exerted by the fluid decreases.

Archimedes' Principle

Buoyant force on an object is equal to the weight of the fluid displaced by the object.

Pascal's Principle

When a force is applied to a confined fluid, an increase in pressure is transmitted equally to all parts of the fluid

F / A



An object will _______ in a fluid that is denser than the object

buoyant force

an upward force on an object immersed in a fluid.


measure of force


measured in square meters


M / V or mass / volume

pressure (x) area



the force exerted on a surface divided by the total area over which te force is exerted.


If force increases over an area, the pressure _________.

atmospheric pressure

Air presses down on Earth with force.


As ______ increases, air pressure decreases.


Decreasing volume ______ pressure.


Increasing temperature ______ pressure.


_______ volume decreases pressure.


Decreasing temperature ______ pressure.


An object will ______ in a fluid that is less dense that the object.

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