A collection of browser-based interactive tools for exploring physics concepts and supporting teaching laboratory sessions. Each app runs entirely in the browser — no installation needed.
Fit a line by eye, then watch SSE, R² and the variance split respond in real time. Builds intuition for why the least-squares line is where it is.
Select an arithmetic operation and enter up to five measurements with absolute or percentage errors. Instantly computes the propagated result and error.
Log repeated measurements one by one and watch the cumulative mean and standard deviation update live with a running chart.
Enter your measured value ± error and the standard value. Checks whether they are consistent and shows how to report the result correctly.
Enter X–Y data pairs live during an experiment and watch the least-squares best-fit line, slope, intercept, and R² update instantly.