# Behavior of Fluids

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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

pressure

newtons

### 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.

measure of force

### Area

measured in square meters

### density

M / V or mass / volume

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.

Example: