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13 Cards in this Set

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What does pressure do as the area over which the force distributed increases?
The pressure decreases.
What is the formula for pressure?
Pressure = Force
Area
What is pressure?
A force exerted on a surface.
What is the unit of pressure?
Pascal (N/m2)
What is a fluid?
A material that can easily flow.
What happens as your elevation increases?
Atmospheric pressure decreases.
What happens when depth increases?
Water pressure increases.
What is a barometer?
An instrument uses to measure atmospheric pressure.
What is a buoyant force?
The upward force exerted by a fluid on a submerged object.
Why does a buoyant force make an object feel lighter?
Because it acts in the direction opposite to gravity.
What does Archimedes' principle state?
The buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces.
What is Pascal's principle?
When a force is applied to a confined fluid, the change in pressure is transmitted qwually to all parts of the fluid.
What does a hydraulic system do?
It uses liquids to transmit pressure in a confined fluid.