Additional experiment:oil viscosity

Following the success of first experiment, here we advance our story with another experiment by testing the oil viscosity using syringe.




Using the well developed model: Poiseuille's Law, we can make use of the fact that viscosity of a fluid is proportional to time taken for it to travel through a given distance. Here we measure the time as the time needed for the oil inside a 10ml syringe to completely drained under the pressure of 50g weight. Since the other parameters such as syringe outlet radius are unobtainable, we measure and compare the time taken as a qualitative comparison as long as control variables are well fixed.

Result:

Time taken\Oil age
t=0
t=5 mins
t=10 mins
t=15 mins
t=20 mins
Trial 1
14.2
15.4
16.3
18.1
19.6
Trial 2
14.5
15.3
16.1
18.2
19.8
Trial 3
14.315.616.318.220.1



Two sample t-test is used to test significance between t=0 group and t=20 mins group
Group\Quantity
p-value
t-statisitcs
standard deviation
t=0 vs t=20 mins
5.4375e-06
-32.3592
0.2082
As p<<0.05, there should be significance in their difference.

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