Graph analysis: best-fit line, slope and error
Fit a straight line through noisy lab data, see the least-squares slope, intercept, r and error bars, and learn how to read a graph properly.
About this experiment
| Subject | Physics |
|---|---|
| Class | 11 |
| Chapter | 1. Units and Measurement |
| NCERT section | Experimental skills |
| Level | NEET level |
| Time | about 12 minutes |
| Access | Included in a PractiSci plan |
What you do in the lab
Change the controls and watch the physics behave in real time in 3D. Live readouts and graphs show the numbers behind it, and the Learn tab has the theory, procedure, observations and viva questions. Works on a phone or a laptop, in English and Hindi.
Topics: graph · least squares · slope · error analysis · JEE practical