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Re: Linearizing Graphs



Ed Schweber wrote:

... If we want to force a graph exeperimental data for period, T, of a
pendulum vs its length, L, into being a straight line we usually plot T^2
vs. L. But a graph of T vs sqrt(L) would also be linear and seems to be
easier for students to understand. Is there any reason besides convention
for doing it one way as opposed to the other? ...

If you need a justification you may say that the length is
the cause [independent variable sqrt(L) in your activity]
while T is the effect [your dependent variable].
Ludwik Kowalski