- #1
physicsdude123
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Homework Statement
You are going to examine the viscosity of a fluid by dropping a ball bearing into a
cylinder of fluid and measuring the fall time. You will use a ruler to measure the
height, h, of the fluid column, and a stop watch to measure the fall time, t. The ruler
and stop watch have reading uncertainties of 0.5 cm and 0.05 s respectively. There
are four members in your group and you each do one measurement of each
quantity. Here are your results:
h1 = 36.0 cm t1 = 15.55 s
h2 = 36.0 cm t2 = 15.25 s
h3 = 36.0 cm t3 = 15.75 s
h4 = 36.0 cm t4 = 15.95 s
You would report your average value of h (in cm) and t (in seconds) as
Homework Equations
Don't know of any?
The Attempt at a Solution
I know to average the quantities, so for h=36.0 and t=15.63, but what I am unsure about
is how to do the uncertainties. Does the uncertainties stay the same as the measurement tool? So would they both be +/-0.5 or am I missing something?
Thanks!