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Foces and Fluids
Chapter 3: Motion, Forces and Energy
12
Science
8th Grade
09/26/2010

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Cards

Term

Archimedes’ Principle

Definition
States that the buoyant forces on an object equals the weight of the fluid displaced by the object.
Term

Bernoulli’s Principle

Definition
States that when the speed of a fluid increases, the pressure exerted by the fluid decreases.
Term

Buoyant Force

Definition
The upward force exerted by a fluid on any object placed in the fluid.
Term

Density

Definition
The mass of an object divided by its volume.
Term

Fluid

Definition
A substance that has no definite shape and can flow.
Term

Force

Definition
A push or a pull.
Term

Hydraulic System

Definition
Use of a fluid to increase an applied force.
Term

Mass

Definition
The amount of matter in an object.
Term

Pascal’s Principle

Definition
States that the pressure applied to a confined fluid is transmitted equally throughout the fluid.
Term

Pressure

Definition
The amount of force applied per unite area on an object’s surface.
Term

Pascal (Pa)

Definition
The SI unit for pressure.
Term

Weight

Definition
The gravitational force between on object and Earth.
     Weight = mass (acceleration due to gravity)
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