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Glossary of science revieewww

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Created by iloveyogos

formula for pressure
force / area
what happens to air pressure when elevation increases?
it decreases
When pressure is applied to a confined fluid the increase in pressure is transmitted equally to all parts of the fluid. who's principle is this?
Pascal's Principle
An object underwater feels lighter than it does in air because of/due to?
buoyancy
An object is dropped into a beaker of liquid. The object drops to the bottom of the beaker. By this we know?
the density of the object is greater than the density of the liquid
When you blow a stream of air next to two balloons, what happens?
they come together.
when the air above an air above an airplane wing is moving faster than the air below the airplane wing, what happens to the plane?
it rises/ increases elevation.
Fluids exert pressure because they are made up of...
Tinymoving molecules exerting a force
Why do bubbles rise in the water?
Bubbles are less dense than the water.
A force pump, such as your heart. Who's principle?
Pascal's Principle
braking system of a car.
hydraulic device
Define DENSITY.
mass per unit volume
Outward pressure exerted by a fluid decreases when WHAT happens to the speed of the fluid?
The speed of a fluid increases
The pressure exerted by the gas in the earth's atmosphere is called
Air Pressure
What happens to the pressure of the water as the depth increases?
Pressure Increases
Direction of buoyancy
Always Upward
According to Archimedes' Principle, the buoyant force on an object is equal to WHAT of the fluid displaced by the object?
WEIGHT
The density of an object would be changed by changing its volume or its...
Mass
A fluid is a substance, whos _____ can change easily.
Shape
What is not an SI unit?
newton

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