This section should demonstrate your understanding of what exactly you measured and how you measured it. Data: In this section you should include the raw data you measured; generally, an estimate of the error should accompany all measured values. Be SUre to present your data in an organized manner (e.
G. A data table) and to include units. Data Analysis: In this section you will manipulate the data in order to help you address your question or hypothesis. Usually this entails performing calculations and/or creating graphs of the data.
Uncertainty & Error: You cannot draw any final conclusions from your data until you think carefully about how well you can trust your data and what factors may have affected or biased it. Additionally, you must often propagate the error from your measurements through your calculations and graphs. Conclusion: Finally, after all this work, go back and answer the question you stated in the beginning. Does your data allow you to support or reject your hypothesis, or is the data inconclusive?Also do you have anything you can compare your results with (e. G. Value in the literature, a second measurement, a measurement with a different method, other lab groups)? How well does it compare to such a value? The following pages contain a sample lab report for an experiment where we observe how the water level in a 2-liter soda bottle changes as more and more water is added.
It is briefer and less well-developed than your lab reports should be, however it gives you a sense of what type of information belongs in each section.All data points fall on the best-fit line thin their uncertainty. Parameters: If we base our best fit on the middle 8 data-points, we obtain: Slope: 10. 2В±0. 5 CM/L Intercept: 1. 5В±0. 3 CM Conclusions: Our expectation of a linear relationship between volume and height seems correct.
The data very well supports this notion as the data falls on a straight line in the V-h graph. The fact that the intercept is non-zero (as we would expect) can be accounted for by the indentations at the lower end of the bottle. The slope has little physical meaning, except that it is proportional to the average area of the bottle.