Literaturnachweis - Detailanzeige
| Autor/inn/en | de Sousa, Gabriel L. A.; Cardoso, George C. |
|---|---|
| Titel | A Battery-Resistor Analogy for Further Insights on Measurement Uncertainties |
| Quelle | In: Physics Education, 53 (2018) 5, Artikel 055001 (10 Seiten)Infoseite zur Zeitschrift
PDF als Volltext |
| Zusatzinformation | ORCID (de Sousa, Gabriel L. A.) ORCID (Cardoso, George C.) |
| Sprache | englisch |
| Dokumenttyp | gedruckt; online; Zeitschriftenaufsatz |
| ISSN | 0031-9120 |
| Schlagwörter | Physics; Science Instruction; Statistical Analysis; Introductory Courses; Teaching Methods; Laboratory Experiments; Intuition; Scientific Concepts; Electronics; Acoustics; Audio Equipment; Comparative Analysis |
| Abstract | We use analogies to provide introductory laboratory students intuition into measurement uncertainties. Using a battery-resistor circuit we discuss uncertainty concepts and derive expressions for uncertainty of the mean and sums of uncertainties. Finally, we draw attention to the fact that the interpretation of standard deviation as uncertainty depends on the statistical distribution of the data, while the interpretation of uncertainty of the mean is largely insensitive to such distribution, especially for large samples. If the resistor in the battery-resistor circuit is a resistive loudspeaker, the uncertainty or noise is literally the acoustic power of the sound produced by such noise. In the sound analogy the statistical distribution of the noise is related to its timbre. (As Provided). |
| Anmerkungen | Institute of Physics Publishing. The Public Ledger Building Suite 929, 150 South Independence Mall West, Philadelphia, PA 19106. Tel: 215-627-0880; Fax: 215-627-0879; e-mail: info@ioppubusa.com; Web site: http://journals.iop.org |
| Erfasst von | ERIC (Education Resources Information Center), Washington, DC |
| Update | 2020/1/01 |
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