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# Science - Chapter 11

### Forces in Fluid

Pressure a force that is exerted over an area on the surface of an object
Pressure Formula Force / Area
Pascal a unit of pressure; N/m^2=Pa
Fluid a material that can flow easily
Buoyant Force acts in the direction opposite to the force of gravity.... because of this it makes an object feel lighter
Archimedes' Principle the buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces
Density a substance is its mass per unit volume; mass / Volume
Pascal's Principle when force is applied to a confined fluid, the change in pressure is transmitted equally to all parts of the fluid
Hydraulic System multiples force by applying the force to a small surface area
Bernoulli's Principle the speed of a moving fluid increases the pressure with the fluid decreases
lift an upward force
Created by: heart1524

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