Gradient = (4pi^2)/g
info on test : usual undertainty shit
few questions about damping
erm last question was designing an experiment when changing the diameter of the utube
will pass on more info thats just wot people had sent me b4 test
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2 questions on uncertainty (NOT %age uncertainty)
question on uncertainty of your smallest reading of T: = half * spread divided by number of osc
uncertainty of your reading of diameter of glass tube (NOT %age)
which contributes most to your formula?

describe and explain the graph

--original experiment:
T=blahblah sqrt[l/2g]
how to get g from gradient of your graph?

why is the system damped? (friction between water and tube?)
what happens to amount of damping / time period if oil used instead of sulfuric acid

section B:
last question is stupid (?) - example is using a big U-tube to absorb energy from oscillations from a building. design an experiment on using different diameters of glass tube on the oscillations [amplitude or time period or both?] (which changes the length if volume constant)

another question:
T = k*rho^{1/n}, n might be -2
formula with density, k constant, n integer, determine k at a certain density, units of k
n = 1/gradient, gradient= -2 ?
find units of k - IF rho is in kgm^-3 and n=-2, units of k would be s[kg^-1 m^3]^{-1/2}  (?)
BUT if rho (density) is measured in something other than kg, the unit of k would be different (just change "kg" to whatever it is).