Fluids Flashcards
Define fluids
substances with no defined for and can flow in all directions
what are the two things we consider fluids?
liquids and gasses
What are collisions among particles a sign of
pressure
What is the formula for pressure and what is each variable measured in?
P = F/A
p= pressure (measured in Pascals)
F= force (measured in newtons)
A= surface area (measured in meters squared)
define pressure
the amount of force exerted per area
The larger the surface area the _____ the pressure (fill in the blank) and when does this rule apply
lower. and it applies when the degree of force is the same
If the surface area is the same, what would you do to increase the pressure
increase the force
why does temperature affect pressure when it comes to gasses?
the higher the temperature, the faster the particles move. Faster particles= more collision= more pressure
with gasses, an __________ in volume will decrease the pressure (fill in the blank) and explain why it happens
increase. because there’s more space to move = less collisions = less pressure