Physics Buoyancy

p

p=Density

p=

p = m/v

p units

kg/m³ or kg/mL

V = rectangle, sphere, cylinder

rectangle: v= l w h

sphere: v= 4/3 pi r³

cylinder: v= pi r² l

P

Pressure

P=

P = F perpendicular / A

P = pgh

P units

N/m² or atm

Pascal’s Principle

F1/A1 = F2/A2

m=

pV

F (buoyancy) =

F (buoyancy) = pg * V

F (buoyancy) = mg

F (buoyancy) = pg (h1-h0)A

F (buoyancy) = pgV

F (buoyancy) units

kg*m/s²/m³ or k/m²s²

F (buoyancy) means

Force pushing up on a fluid

In a fluid what happens to P

In a fluid P increases with depth

F (buoyance) =

F (buoyance) = F1-F0

F (buoyance) = pgV v = volume of fluid displaced p = density of fluid

F (buoyance) = P1A - P2A

p = pgh