Pressure the force exerted on a surface divided

Pressure – the force exerted on a surface divided by the total area of the surface. Force Pressure = Area P= F A measured in units of Newton/meter squared (N/m 2)

Newton/meter squared 2 (N/m ) a. k. a. Pascal (Pa)

buoyant force – the force that acts in the direction opposite to gravity, making the object feel lighter. buoyant force Gravity

buoyant force 10 N Gravity 20 N

buoyant force 20 N Gravity 10 N

Archimedes’ Principle states that the buoyant force on a submerged object is equal to the weight of the fluid displaced by the object. duck floats water displaced 20 N weight 10 N

Buoyant Force FB = (mf)(g) Measured in units of Newtons (N)

Density the mass per unit volume of a substance. Density = D= Mass Volume m V measured in units of grams/milliliter (gm/m. L) or grams/cubic centimeter (gm/cm 3).

If the density of an object is greater than the density of the fluid, the object will sink. If the density of an object is less than the density of the fluid, the object will float.

Pascal’s Principle when a force is applied to a confined fluid, the force is transmitted equally to all parts of the fluid. 10 N leak

Bernoulli’s Principle states that as the speed of a fluid increases, the pressure within the fluid decreases. or the faster a fluid moves, the lesser pressure it exerts on a surface.