U8 Fluids Flashcards
(20 cards)
how would you graph density
mass on the y axis and volume on the x
how does a metal boat float
from the force of buoyancy
what is buoyancy
the force of gravity pulling the object down is couneracted with the waters normal force
What is waters density
1000kg/m^3 or 1 g/ml
if bouyancy is greater than grabity what happens
the object will float
if buoyancy is less than gravity what happens
the object will sink
what does water displacement represent in terms of the object
the mass
How does pressure change when you get deeper in water
Increases
What is formula for absolute pressure
Atmospheric pressure plus gauge pressure
What’s is the atmospheric pressure
1 x 10^5
Unit for pressure
Pa
In constant velocity what is the forces
Equal to zero forces
the pressure exerted bya. floid on a container is caused by which of the following
the collisions between the fluid particles and the container surface
what is a buyount force
the net force exerted on an object by the fluid around it
what types of things experience buyount force
air and water
which two equations find the flow rate of a fluid
Volume/change in time
Area times velocity
what is exit velocity of fluid
square root of 2gy
is flow rate always constant
yes
how does a narrower tube affect velocity and pressure
faster velocity and lower pressure
how does a wider tube affect velocity and pressure
slower velocity and higher pressure
