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Data for elvis experiment testing time for length, diameter and viscosity

Lab handout and data
data for elvis experiment testing time for length, diameter and viscosity
Writing instructions
How the experiment was carried out: This experiment consisted of three different experiments. The first, was to find the relationship between the radius of the blood vessel and the flow of blood through the vessel. For this experiment, we used four tubes all with a different diameter (see table 1 for measurements), 1000ml beaker, 100 ml graduated cylinder, and a ring stand with clamps. The same procedure was used for all four tube radius tests. We took the tube with the funnel and placed it in the single stand. Next, we used the graduated cylinder and filled it up with water (See table 1 for water measurements). We then placed the tube over the beaker making sure the tube was at correct angle for the water to flow properly. Note, if the angle of the tube is off, the results are not going to be accurate. Three people were required to execute this experiment. The first person was needed to hold the tube in place and cover one end of the tube with their finger, the second kept time and data, and the third added water to the funnel so it can go through the tube. To start the experiment, the first person added water slowly to the funnel so it could fill the tube. The second person kept the tube at the right angle and plugged it with their finger while it filled with water. The beaker was placed at the end of the tube to catch the water that flows out. Make sure the tube does not contain any air bubbles or the results will not be accurate.

Once the tube was filled with water, the second person removed their finger from the end that’s on the beaker and allowed the water to flow out. While this was going on the first person poured the 100 mL of water slowly into the funnel so it could go down the tube. The third person kept time on how long it took the water to flow out of the tube into the beaker and recorded it (See tables raw data). The raw data gathered from the experiment was then used to calculate the average time it took for the water to flow through the tubing. With these average times, you can now convert the raw data
(how many seconds it took for 100ml to flow through the tubing, e.g. 6.67 seconds; see sample equation below) into flow rate in L/min:
Flow Rate Formula:
Flow Rate= (100ml) (1L) (60s) = 0.90 L
(6.67sec) (1000ml) (1min) = min

Here is what you need to do. Create three tables and graphs that show the corresponding flow rate in liters per minute (L/min) from the average over the 3 trials for each experiment demonstrating the relationship between the a) diameter of a blood vessel and the flow of blood through that vessel, b) the length of the blood vessel and c) the viscosity of the blood (diluted maple syrup solution in percent). The graphs will show the average flow rate in L/min (y axis) as a function of the variable (different diameter, length, % syrup) on the x axis. Write a short conclusion as a “Letter to Elvis’ and your recommendation to change his health in such a way that his blood vessels will promote the highest blood flow possible, which in turn means his heart has to work less hard which promotes good heart health.


We will begin by stating the purpose of the experiment.

It might be something like “The purpose of this experiment is to determine which between diameter of the blood vessel, the length of the blood vessel and the viscosity of blood is more significant in determining blood flow rate”.

Analyze the data and create a more organized table to draw the three graphs

Table 1

Diameter against the flow rate.

Tube 1

Diameter: 4mm

Average flow rate: (100/9.45 + 100/9.36 + 100/9.32) / 3 = 10.66 ml/sec or 0.64 L/min

Tube 2

Diameter: 5 mm

Average Flow Rate: 0.96 L/min

Tube 3

Diameter: 6mm

Average flow rate: 1.27 L/min

Tube 4

Diameter: 10mm

Average Flow Rate: 2.19 L/min

Table 2

Tube 1

Length: 20 cm

Average Flow Rate: 100/5.79 + 100/5.12 + 100/5.30 = (17.27 + 19.53 + 18.87) / 3 = 18.56 mL/sec or 1.11 L/min

Tube 2

Length: 40cm

Average Flow Rate: 1.07 L/min

Tube 3

Length: 60cm

Average Flow rate: 0.91 L/min

Tube 4

Length: 80cm

Average Flow rate: 0.86 L/min

Table 3

Tube 1

%syrup: 30/70*100 = 42.86%

Average Flow rate: (70/6.56+70/6.79+70/6.65) / 3 = 10.5 mL/sec or 0.63 L/min

Tube 2

%syrup: 150%

Average Flow Rate: 0.21 L/min

Tube 3

%syrup: 400%

Average Flow Rate: 0.03 L/min

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