Lab#6: Propagated Uncertainty Calculations
Dahlia - Ariel - Carlos
08-Sept-2016
The purpose of this lab is to help students calculate some values of uncertain members. In the real world, we can not do any experience in one time, and assign the result as its value. Indeed, we have to do so many time, and of course, we cannot receive the same result in every single trial. Knowing how to calculate uncertainty value is very necessary skill for students.
1. Set up:
First, we had two different objects A and B:
To measure them, we used a very special tool:
and then, this was what we got:
1. Set up:
First, we had two different objects A and B:
And we need to measure their diameters, their lengths, and their weights.
2. Calculate:
With these data, we could calculate the uncertainty value of the density(mass / volume) of two objects based on formula:
ρ = 4m/πd2h.
and
Apply the formula, I had answer:
Thus, with object A, density would be 2.84±0.046 g/cm^3
object B would be 7.007±0.1149 g/cm^3
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