Buoyancy Flashcards
1
Q
In what direction do forces act on objects in fluids?
A
Perpendicularly
2
Q
What is the equation for hydrostatic pressure?
A
P = ρgh
Hydrostatic pressure = density x gravity x height
3
Q
What is the density of pure water?
A
1000 kg / m^3
4
Q
What is the value of gravity on earth?
A
9.81 m / s^2
5
Q
How does the density of objects make objects interact with other objects?
A
Less dense things float more on top of more dense things
6
Q
How do you find buoyancy force?
A
Fg = Fb
Fg = ma
Fb = -ρgv
7
Q
How is depth (amount an object is submerged by) calculated?
A
depth = displaced volume / area of bottom face
