PH 201 Post-Lab 01

Graphing

Name

Solution

 

1. What are the coordinates of the ‘+’ plotted in the graph figure shown on the left?

 

(-2.85, 3.15)

 

2. Plot a dot at the location (1.75, -2.25).  Make the dot fairly small and then circle it to make it easier to find.

 

3. You have a set of experimental data that you have plotted distance on the y axis and time squared on the x axis.  You have drawn a “best straight line” and from this line you select two points,

(8.85 s2, 1.92 m) and (1.04 s2, 11.37 m).  What is the slope of your line?

 

 

 

 

Slope =

 

A particular experimental relationship can be expressed mathematically by the equation

 

4. If you created a ln(y) vs ln(x) plot (ln(y) is along the vertical axis), what would you find the slope to be?

 

Comparing ln-ln plot equation with a straight line

 

 

 

 

Slope =

-2.4

 

5. What would you find the y-intercept to be?

 

 

 

y-intercept =

 

 

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This page last updated on January 11, 2020