Curve Straightening


From physick.wikispaces.com
Brandon Miller

Curve Straightening used to turn a curved graph (y α 1/x2) into a linear graph (y = mx + b) : force vs.
separation in Coulomb's Law.
Fe = kq1q2/r2

If we turn this graph into a linear graph, we graph_9.gifdetermine the graph's slope, which could tell us: the experimental value of k and the magnitude of the charges.

Data Table:
x y
1 5
2 7
3 11
4 19
5 26
6 40
Step 1: Look at the graph and
data. Determine the
relationship. This is a squared
relationship.
Step 2: Take all x values
and square them.
Step 3: Replot
the graph. It will
now be a straight line.
Now we are able to do a slope calculation on it.

3547391-two-parallel-vertical-arrows-both-pointing-up-one-blue-one-orange.jpg

graph_6.gif




References:
ldindustries.ca
http://www.bbc.co.uk/schools/gcsebitesize/maths/images/graph_6.gif