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Need a well-written lab report? Give us a try! Make an order with a trusted us company! Attached to this pressure vessel was a pressure transducer and thermocouple to measure the pressure and the temperature, respectively, of the air inside the vessel.
Both of these transducers produced voltage signals in Volts that were calibrated to the pressure kPa and temperature K of the air the atmospheric pressure for where the experiment occurred is assumed to be In addition, the theoretical temperature K of air was calculated as a function of the measured pressured values kPa.
Results and Discussion This section analyses the results of the experiment. The experiment went as expected with no unusual events that would have introduced error. The voltages as measured for the pressure and temperature transducers appear in Table A-1 of the Appendix. Also included in the Appendix are the equations used for calibrating those voltages with the actual pressures and temperatures.
These equations led to the values of pressure and temperature that are shown the third and fourth columns of Table A From these values, a graph between temperature K and pressure kPa was created Figure A As can be seen from the graph, the relationship of temperature versus pressure is roughly linear. As part of this experiment, the theoretical values of temperature were calculated for each measured pressure value.
In this calculation, which used the ideal gas equation, the volume and mass were assumed to be constant. These theoretical values of temperature are shown in the final column of Table A However, be careful not to over explain or add in irrelevant information.
The procedure and materials list can be combined into one paragraph. Make sure to find out which way your instructor prefers before choosing. Using your procedures and materials, perform the experiment. You should complete all of the steps outlined in Part 1 before performing the experiment. Completing part of the lab write up before you do the experiment, such as the materials and procedure, is important because it gives you a clear idea of what will happen during the experiment.
Writing out the hypothesis, purpose, and introduction material helps you understand the results of the experiment and not change your hypothesis based on the outcome of the experiment. This section contains the raw data observed during the experiment. You should record your observations in a clear, logical manner. Organize data and categorize the data so it is easy to read and understand. This section includes data tables, graphs, or any notes made during the experiment.
The data tables should be labeled clearly, and all units of measurement should be recorded. When using graphs, use X or O instead of dots. Make sure each axis is labeled with a variable. Qualitative data is observable data that does not have a numerical value.
These are things you observe with your five senses. Quantitative data is observable data that responds to measurable values. Examples of quantitative results are measurements in units like centimeters, weight in grams, speed in kilometers, along with density, volume, temperature, and mass.
In this section, analyze the experiment. Interpret the results by explaining them, analyzing what they mean, and comparing them.
Hypothesize what might happen if a variable in the experiment was changed. Accept or reject your hypothesis. In the conclusion, explain if your hypothesis was correct or incorrect. Use data obtained from the experiment to support why you accept or reject it. If so, make sure to say that. Explain what the other conclusions are.
An example of a hypothesis rejection is: Our hypothesis was incorrect. The cake did not cook at a higher temperature for a shorter amount of time. The cake was still raw when it was taken out of the oven. Make sure to include any errors in your data, or data that is extreme and does not fit with the other data.
Discuss reasons why the data might be wrong. State what you could do differently to improve the quality and preciseness of the experiment. If you want to write your lab report in a more formal voice, you might end up with more passive language in your report. For example, instead of, "I filled the beaker with saline," you would write "The beaker is filled with saline.
Not Helpful 3 Helpful 8. Yes, they are not called dangers though, they are called "safety concerns. Not Helpful 21 Helpful Yes, you should provide the safety equipment required for the experiment, as harmful substances may be used. Adding safety equipment, if needed, would be important to include. Not Helpful 1 Helpful 6. Cater to the teacher. Not Helpful 40 Helpful Do I need to explain what the materials are for in the material list?
Only a list of materials required to perform the experiment should be provided and not their purposes. Not Helpful 2 Helpful 7. An example of error might be the limits of the measuring equipment, if it doesn't have small enough intervals then there is likely going to be some error there.
Other types of error depend on the experiment. For example, often in basic physics a surface is assumed to be friction-less to make equations easier, but that creates error, but that wouldn't appear in a more advanced level of physics or in other scientific fields.
Not Helpful 15 Helpful Does calculating the surface tension of two or more liquids count as an experiment? If it involves testing with a controlled and uncontrolled variable to support or fail to support a hypothesis, then it is an experiment. If you're just using an equation to calculate the surface tension, that's not an experiment.
Lab reports are an essential part of all laboratory courses and usually a significant part of your grade. If your instructor gives you an outline for how to write a lab report, use that. Some instructors require the lab report be included in a lab notebook, while others will request a separate.
* Write a paragraph (complete sentences) which explains what you did in the lab as a short summary. * You may choose to add details (step-by-step) of your procedure in such a way that anyone else could repeat the experiment.
Jul 27, · Expert Reviewed. How to Do a Lab Write Up. Two Parts: Completing the Pre-Experiment Part of the Lab Write Up Completing the Post-Experiment Part of the Lab Write Up Community Q&A A lab write up is a clear, detailed outline of your experiment. It is used to describe and analyze the procedures followed and data collected%(69). Writing a lab report by experts in Chemistry, Physics, Biology and more Grademiners offers writing a lab report from scratch. Plus, you can skyrocket your GPA with personalized pre-labs, post-labs, questions, bibliography and graphical analyses.
The best way to prepare to write the lab report is to make sure that you fully understand everything you need to about the experiment. Obviously, if you don’t quite know what went on during the lab, you’re going to find it difficult to explain the lab satisfactorily to someone else. Writing lab report containing recommendations for the adoption of relevant decisions, the analysis of the results. Online professional help with essay writing. How To Make Your Personal Statement Unique. If you are going to enter a university or college of your dream, you have grounds to worry not only about your future exams. You have to.