esc101-20089-lecture-10-bw-small

• conclusion is a summary • state what is

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Unformatted text preview: • Conclusion is a summary • State what is “known” as a result of experiment “This experiment veriFed KVL and KCL…” • Justify that statement by highlighting signiFcant results Some Thoughts about Conclusions In the formal lab assignment Abstract Entire Report in miniature = • Purpose of the Experiment • Key result • Most signiFcant points of Discussion • Major Conclusion • Brief Explanation of Method • Brief Reference to Theory Components of an Abstract In this experiment, an unknown metal sample was identifed using the Debye-Sherrer (powder camera) method oF x-ray diFFraction. ¡or the sample, the diFFraction pattern revealed a Face- centred cubic metal. The atomic radius oF the sample was Found to be 0.1244 nm. The only element with this atomic radius and crystal structure is nickel. Sample Abstract 55 words In this experiment, an unknown metal sample was identifed using the Debye-Sherrer (powder camera) method oF x-ray diFFraction. This method is particularly useFul For small sample quantities and can accurately determine lattice parameter and crystal phase. ¡or the sample, the diFFraction pattern revealed a Face-centred cubic metal. The atomic radius oF the sample was Found to be 0.1244 nm. The only element with this atomic radius and crystal structure is nickel. 73 words … add in some background In this experiment, an unknown metal sample was identifed using the Debye-Sherrer (powder camera) method oF x-ray diFFraction. This method is particularly useFul For small sample quantities and can accurately determine lattice parameter and crystal phase. ¡or the sample, the diFFraction pattern was indexed by tabulating the sequence oF sin2 ! values, revealing a Face-centred cubic metal. The atomic radius oF the sample was Found to be 0.1244 nm. The only element with this atomic radius and crystal structure is nickel. 83 words … add methodological substantiation In this experiment, an unknown metal sample was identifed using the Debye-Sherrer (powder camera) method oF x-ray diFFraction. This method is particularly useFul For small sample quantities and can accurately determine lattice parameter and crystal phase. ¡or the sample, the diFFraction pattern was indexed by tabulating the sequence oF sin2 ! values, revealing a Face-centred cubic metal. The atomic radius oF the sample was Found to be 0.1244 nm. The only element with this atomic radius and crystal structure is nickel. ¡urther, the lack oF any other diFFraction lines indicates that the nickel is relatively pure. 98 words … demonstrate analytical depth When the lab is difFcult to report … (e.g. multi-stage labs, no good results, an “observation” lab) Take the "# path When the lab is difFcult to report … (e.g. multi-stage labs, no good results, an “observation” lab) Retreat to 1 st principles, regroup, and rebuild Accomplish these......
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  • Fall '08
  • Irish
  • Atomic Radius, Electrical impedance, Kirchhoff's circuit laws, Unknown Metal Sample, voltage division rule, lowest resonance frequencies

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