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.

Curve Straightening

Brandon MillerFrom physick.wikispaces.comCurve 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