Does Fluid Pressure Change with the Size of the Opening?

  • Thread starter Thread starter Shordaay
  • Start date Start date
  • Tags Tags
    Physics
AI Thread Summary
Fluid pressure is hypothesized to vary with the size of an opening, with an experiment set up using containers with holes of different radii to measure the maximum distance water reaches when released. The expected result suggests that the flow rate is inversely proportional to the hole size, indicating smaller holes may project water further. Key variables include manipulated (amount of water), responding (flow rate and distance), and constant (size of holes and fluid nature). Limitations such as altitude and wind are acknowledged, as they could affect results. The discussion emphasizes clarity in experimental design and the importance of precise terminology.
Shordaay
Messages
9
Reaction score
0
title of lab is fluid and pressure
hypothesis: fluid pressure varies with size of opening
aim: to determine whether fluid pressure varies with size of opening

i need help with the expected results, discussion, variables: (manipulated, responding and constant), sources of error, limitations and precautions

would anyone please help me in these areas please??

to have an idea of what the lab looks like.. its a set up of 4 different regular shaped plastic containers with holes of radii 1mm, 5mm, 10mm and 20mm in each container such that the center of the hole is 5cm from the ground. I am suppose to block the hole and fill the container completely then unblock the hole and measure the maximum distance the water reached.

one expected result i have so far is that the diameter is inversely proportional to the flow rate; the smaller the hole the further the water will go.

for my limitations i have: altitude affects the distance traveled by the water.
the for precautions i have: it should be performed outside and wind might affect the distance traveled by the gush of water and leave the container empty.
for my variables i have: manipulated- the amount of water used, responding- the flow rate and the amount of water released and for constant- the size of the holes, nature of the fluid
 
Last edited by a moderator:
Physics news on Phys.org
Shordaay said:
title of lab is fluid and pressure
hypothesis: fluid pressure varies with size of opening
aim: to determine whether fluid pressure varies with size of opening

i need help with the expected results, discussion, variables: (manipulated, responding and constant), sources of error, limitations and precautions

would anyone please help me in these areas please??

to have an idea of what the lab looks like.. its a set up of 4 different regular shaped plastic containers with holes of radii 1mm, 5mm, 10mm and 20mm in each container such that the center of the hole is 5cm from the ground. I am suppose to block the hole and fill the container completely then unblock the hole and measure the maximum distance the water reached.

one expected result i have so far is that the diameter is inversely proportional to the flow rate; the smaller the hole the further the water will go.

for my limitations i have: altitude affects the distance traveled by the water.
the for precautions i have: it should be performed outside and wind might affect the distance traveled by the gush of water and leave the container empty.
for my variables i have: manipulated- the amount of water used, responding- the flow rate and the amount of water released and for constant- the size of the holes, nature of the fluid

I hesitate to help because I am not sure what you are doing. Seems you got a lot of things going on here.

But pleading gets to me...

First off your to statements in red and bolded seem to contradict each other. I think I might know what you are trying to do but it does not read this way. So what does the 2nd red phrase mean?
 
well actually i was trying to explain what i had to do.. like shorten the procedure a bit so you would have an idea
 
So the second red statement is the distance the water level drops in the container, or the distance to the ground?
 
the distance to the ground
 
I multiplied the values first without the error limit. Got 19.38. rounded it off to 2 significant figures since the given data has 2 significant figures. So = 19. For error I used the above formula. It comes out about 1.48. Now my question is. Should I write the answer as 19±1.5 (rounding 1.48 to 2 significant figures) OR should I write it as 19±1. So in short, should the error have same number of significant figures as the mean value or should it have the same number of decimal places as...
Thread 'A cylinder connected to a hanging mass'
Let's declare that for the cylinder, mass = M = 10 kg Radius = R = 4 m For the wall and the floor, Friction coeff = ##\mu## = 0.5 For the hanging mass, mass = m = 11 kg First, we divide the force according to their respective plane (x and y thing, correct me if I'm wrong) and according to which, cylinder or the hanging mass, they're working on. Force on the hanging mass $$mg - T = ma$$ Force(Cylinder) on y $$N_f + f_w - Mg = 0$$ Force(Cylinder) on x $$T + f_f - N_w = Ma$$ There's also...
Back
Top