Buoyancy Flashcards
1
Q
What is buoyancy?
A
The force acting opposite the direction of gravity that affects all objects submerged in a fluid
2
Q
What is the formula for buoyancy?
A
Fb= Vs X P X g
3
Q
What does Fb represent?
A
Buoyancy force
4
Q
What does Vs represent?
A
Submerged volume (always measured in meters!)
5
Q
What does P represent?
A
The density of the fluid the object is submerged in (kg/L)
6
Q
What does g represent?
A
The gravity force (9.81N)
7
Q
How do you get the full force that is pushing downwards?
A
You multiply the gravity force (9.81N) by the mass of the object
8
Q
If the gravity is greater it…
A
Sinks
9
Q
If the buoyant force is greater it…
A
Floats
10
Q
Positively buoyant:
A
> 9.81N (floats)
11
Q
Negatively buoyant:
A
<9.81N (sinks)
12
Q
Neutral buoyancy:
A
=9.81N (suspended in fluid)
