Density
This is the unit for density.
What is kg/m3
This is the equation for Buoyancy.
FB = pf Vf g
This is the unit for pressure
What is Pascal?
True or False: Pressure changes based on how fast fluid moves.
TRUE
This is why the diver sinks.
Water enters the diver and its density increases.
This is the density of freshwater.
What is 1000 kg/m3
Buoyancy is the ________ of the fluid displaced.
What is weight?
The deeper you go in a fluid the ________ pressure there is.
What is more?
Low pressure occurs with ________ moving fluids.
Fast
This is why the diver floats
Water leaves the diver and its density decreases
This is the density of seawater.
What is 1025 kg/m3
When an object is floating in the water, these two forces are equal.
FB = Fw
Pressure in an open, connected fluid is the same along a _______.
What is a horizontal line?
This is the equation of continuity.
A1 v1 = A2 v2
Pressing on the bottle would cause water to ______ the diver.
Enter
This is why an object sinks.
A block of styrofoam is floating and a block of steel with the same volume is submerged in water. This object has the greater buoyancy.
What is the block of steel?
Archimedes finally understood the concept of buoyancy by stepping into a ________ which over-flowed.
What is a bathtub?
High pressure occurs with ________ moving fluids.
Slow
This is why the diver could never sink.
What is there was glue creating a closed system which did not allow water to enter the diver.
If a block of aluminum is broken into 3 different sizes, this explains their densities by size.
There will be no difference in density among the three different size pieces. They are all still aluminum.
When an object is fully submerged in the fluid, these two things are equal.
Vobject = Vfluid
Pascal's principle states:
The pressure in a CLOSED system is the SAME everywhere.
Do this to shoot water farther from your hose.
What is make the hole smaller.
This is what would happen to the air in the diver when it sank.
What is it would compress. (gasses are compressible)