Curve+Straightening

=//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 determine 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.





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