flow experiment

Your work on flow experiment has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

Your initial message (if any):

Is flow rate increasing, decreasing, etc.?

it would increase as it gets closer to the bottom of the opening b/c the air bubbles are making the pressure flow quicker and quicker.

Is the velocity of the water surface increasing, decreasing, etc.?

remain the same b/c the buoy and velocity of the water is going to be a constent no matter the size of the whole and the pressure causing the water to run out.

How would the velocity of the water surface, the velocity of the exiting water, the diameter of the cylinder and the diameter of the hole be interrelated?

They are all going to be interrelated b/c everything mentioned is going to have something to do with the flow of the water. the diameter of the cylinder and the diameter of teh hole will be a big deciding factor in making the water move with more or less velocity.

Explain how we know that a change in velocity implies the action of a force:

the change in velocity is going to imply action of a force b/c the velocity is causing something different to happen to teh water making the action of a force come in play. By this meaning that the action of a force is going to be there b/c the water coming out of the hole is coming out faster than when it first exits the cylinder.

Does the depth seem to be changing at a regular rate, at a faster and faster rate, or at a slower and slower rate

at a regular rate, the depth is staying about the same and just making its way toward the bottom of teh cylinder.

What do you think a graph of depth vs. time would look like?

it would be consistent or staying the same, descending toward the bottom of the paper of course first starting at the top and coming down.

Does the horizontal distance (the distance to the right, ignoring the up and down distance) traveled by the stream increase or decrease as time goes on?

it is going to decrease as time goes on b/c there is not as much pressure being exerted on the water and there is less and less of the liquid left in the cylinder.

Does this distance change at an increasing, decreasing or steady rate?

steady rate

What do you think a graph of this horizontal distance vs. time would look like?

The contents of TIMER program as you submitted them:

1 1022.188 1022.188

2 1023.656 1.46875

3 1025.156 1.5

4 1026.672 1.515625

5 1028.094 1.515625

6 1031.297 1.609375

6 1029.688 1.59375

7 1031.297 1.609375

8 1032.859 1.5625

9 1034.781 1.921875

The vertical positions of the large marks as you reported them, relative to the center of the outflow hole

8.5

11.25

14.0

17.55

20.35

23.50

Your table for depth (in cm) vs clock time (in seconds)

0,23.50

1.46875,20.35

1.5,17.55

1.515625,14.0

1.515625,11.25

1.609375,8.5

Is the depth changing at a regular rate, at a faster and faster rate, or at a slower and slower rate?

seems to be changing at a regular rate, there is a pattern happening here and it looks as if my experiment is working out to the best that I know how.

Your description of your depth vs. t graph:

Your explanation and list of average average velocities:

The midpoints of your time intervals and how you obtained them:

Your table of average velocity of water surface vs. clock time:

Your description of your graph of average velocity vs clock time:

Your explanation of how acceleration values were obtained:

Your acceleration vs clock time table:

According to the evidence here, is acceleration increasing, decreasing, staying the same or is in not possible to tell?

the acceleration of the water surface is constant with what I have done in this experiment.

the acceleration of the water surface is starying constant with what is happening to the water in the cylinder.

Your data look good.

After the due date we will be discussing this experiment further via an online forum.