Graph Plotting - Yay or Nay

Assalamualaikum wbt and have a good day everyone!

For this entry, I would like to share on the Yay and Nay for graph plotting. Your technique for graph plotting is originally inherited on how specific and articulate you are in Mathematics graph plotting.

The graph is a VERY VERY important element in learning Physics. As soon as you have the raw data during observation, you need to plot a graph/s in order to find:
(i)     The relationship between the Manipulated Variable (MV) and Responding Variable (RV)
(ii)    Whether the gradient of the graph give any meaning in terms of proving to the theory
(iii)   The pattern of the graph shows whether a law/rule is followed or not

That is why you see me very upset when in your experiment report, you put your focus on copying from the aim of the experiment until procedure but lose focus on what is meant to conduct the experiment itself which is the analysis from graph plotting, discussion, safety measure taken during the experiment and conclusion.

So stay focus.

There are SEVEN rules in Physics SPM level which must be followed by the students:

1. Title of the Graph

2. Physics quantity of y- axis and x- axis is referred to the graph title

3. Unit of each physics quantity for the y-axis and x-axis is included

4. The scale of the graph in y-axis and x-axis must be uniform

5. The value of MV and RV must be transferred correctly from the table to the graph paper.

6.  There are two types of graphs (in Physics SPM level): a smooth straight-line OR a smooth curve (textbook page 11)

7. The size of the graph must be more than 50% of the graph paper.

Here are some of your graph Yay - Nay:

1. The physical unit at the y-axis does not represent graph required which is T²against l
2. Scale in the y-axis is not uniform

1. The physical unit at the y-axis does not represent graph required which is T²against l
2. Values at the y axis supposed to be T² instead of the value of t 

Now, these are the graphs which have been plotted by your classmates. Can you relate the mistakes? and corrections that should be done?

Mostly the same mistakes were done by the students.

Mistakes meant to be CORRECTED. Mistakes also are part of the learning process. I hope that with this sharing, you are able to do correction of your graph.