Behavior of Fluids

Created by stacy_little 

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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

pressure

float

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

buoyant force

an upward force on an object immersed in a fluid.

Newtons

measure of force

Area

measured in square meters

density

M / V or mass / volume

pressure (x) area

force

pressure

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

increases

If force increases over an area, the pressure _________.

atmospheric pressure

Air presses down on Earth with force.

altitude

As ______ increases, air pressure decreases.

increases

Decreasing volume ______ pressure.

increases

Increasing temperature ______ pressure.

Increasing

_______ volume decreases pressure.

decrease

Decreasing temperature ______ pressure.

sink

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

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