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Showing 1 to 15 of 34 results Save | Export
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Pfaender, J.; Gratton, L. M.; Rosi, T.; Onorato, P.; Malgieri, M. – Physics Teacher, 2022
In the last decades spectroscopy began to play an essential role in physics education research with the recognition that atomic spectra constitute a good occasion to study the concepts of quantum mechanics. Moreover, activities in which atomic spectra are studied in order to understand star structure and evolution have proved particularly engaging…
Descriptors: Science Instruction, Physics, Spectroscopy, Scientific Concepts
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Thompson, Frank – Physics Education, 2022
An absorption line at 900 nm has been observed in Perspex. Samples of 1 and 2 cm thickness were used and the integrated absorption (line width times peak absorption) of the line was proportionate to the thickness. Facilities for lowering the sample temperature were not available and therefore both measurements were carried out at room temperature.…
Descriptors: Spectroscopy, Chemistry, Physics, Climate
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Cortney, Candice H.; Krishnan, V. V. – Journal of Chemical Education, 2020
Keto-enol tautomerism is a fundamental concept that examines the migration of a proton between two constitutional isomers, the keto and enol tautomer. Many experiments have been proposed to understand the concept behind Meyer's Rule, which states that the keto tautomer is favored as the solvent polarity increases. However, all the experiments have…
Descriptors: Physics, Chemistry, Thermodynamics, Spectroscopy
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Davide Revignas; Vincenzo Amendola – Journal of Chemical Education, 2022
Nowadays, technologies involving nanoparticles, colloids, sensors, and artificial intelligence are widespread in society, media, and industry. It is thus mandatory to integrate them into the curricula of students enrolled in chemistry and materials science. To this purpose, we designed a simple assay for the detection of glutathione (GSH) using…
Descriptors: Spectroscopy, Science Education, College Science, Optics
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Özdemir, Erdogan; Coramik, Mustafa; Ürek, Handan – Physics Education, 2019
Optics is one of the subject areas in which students have difficulty learning. Establishing the right connections between the concepts of optics and daily life supports the learning of the concepts of optics. In addition, this connection increases the students' motivation to learn optical issues. In this study, three activities related to prisms…
Descriptors: Optics, Scientific Concepts, Physics, Light
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Zhao, Yanlu; Lim, Minyoung; Choi, Sungmoon; Yu, Junhua – Journal of Biological Education, 2022
The attractive photophysical properties of luminescent nanoparticles have prompted numerous studies on their synthesis and biological applications. Due to the complexity of components, sizes, morphologies, and strong light scattering of the nanoparticles the absorption spectrum alone is not enough for characterising and analysing the real…
Descriptors: Spectroscopy, Cytology, Light, Science Instruction
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Aji, Mahardika Prasetya; Karunawan, Jotti; Chasanah, Widyastuti Rochimatun; Nursuhud, Puji Iman; Wiguna, Pradita Ajeng; Sulhadi – Physics Education, 2017
A simple diffraction experiment was designed using banana stem as natural grating. Coherent beams of lasers with wavelengths of 632.8 nm and 532 nm that pass through banana stem produce periodic diffraction patterns on a screen. The diffraction experiments were able to measure the distances between the slit of the banana stem, i.e. d = (28.76 ±…
Descriptors: Lasers, Science Experiments, Teaching Methods, Spectroscopy
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Ribaudo, Joseph – Physics Teacher, 2016
Without question, one of the most useful tools an astronomer or physicist can employ to study the universe is spectroscopy. However, for students in introductory physics or astronomy classes, spectroscopy is a relatively abstract concept that combines new physics topics such as thermal radiation, atomic physics, and the wave and particle nature of…
Descriptors: Spectroscopy, Light, Hands on Science, Introductory Courses
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Gupta, Vipul; Ganegoda, Hasitha; Engelhard, Mark H.; Terry, Jeff; Linford, Matthew R. – Journal of Chemical Education, 2014
The traditional assignment of oxidation states to organic molecules is problematic. Accordingly, in 1999, Calzaferri proposed a simple and elegant solution that is based on the similar electronegativities of carbon and hydrogen: hydrogen would be assigned an oxidation state of zero when bonded to carbon. Here, we show that X-ray photoelectron…
Descriptors: Organic Chemistry, Spectroscopy, Scientific Concepts, Physics
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Malgieri, Massimiliano; Tenni, Antonio; Onorato, Pasquale; De Ambrosis, Anna – Physics Education, 2016
In this paper we present a reasoning line for introducing the Pauli exclusion principle in the context of an introductory course on quantum theory based on the sum over paths approach. We start from the argument originally introduced by Feynman in "QED: The Strange Theory of Light and Matter" and improve it by discussing with students…
Descriptors: Scientific Principles, Introductory Courses, Quantum Mechanics, Science Experiments
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Hughes, Stephen W.; Hosokawa, Kazuyuki; Carroll, Joshua; Sawell, David; Wilson, Colin – Physics Education, 2015
A technique is described for calculating the brightness of the atmosphere of the Earth that shines into the Earth's umbra during a total lunar eclipse making the Moon red. This "Rim of Fire" is due to refracted unscattered light from all the sunrises and sunsets rimming the Earth. In this article, a photograph of the totally eclipsed…
Descriptors: Astronomy, Space Sciences, Light, Measurement Techniques
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Gibbons, Thomas C. – Physics Teacher, 2014
In this time of concern over climate change due to the atmospheric greenhouse effect, teachers often choose to extend relevant classroom work by the use of physical models to test statements. Here we describe an activity in which inexpensive backyard models made from cardboard boxes covered with various household transparent materials allow…
Descriptors: Climate, Science Instruction, Science Activities, Light
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Aguilar, Horacio Munguía; Maldonado, Rigoberto Franco – Physics Education, 2015
A simple capacitive cell for dielectric constant measurement in liquids is presented. As an illustrative application, the cell is used for measuring the degradation of overheated edible oil through the evaluation of their dielectric constant.
Descriptors: Physics, Measurement Techniques, Heat, Fuels
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Seitz, B.; Rivera, N. Campos; Gray, R.; Power, A.; Thomson, F. – Physics Education, 2018
Radiation, radiation detection and radiation protection are topics in physics and its applications which generate a wide interest in the public. This interest is either generated through medical procedures, applications of nuclear energy or nuclear accidents. The technical nature of these topics usually means that they are not well covered in the…
Descriptors: Radiation, Physics, Science and Society, Outreach Programs
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Charlton, Michael; Eriksson, Stefan; Isaac, C. Aled; Madsen, Niels; van der Werf, Dirk Peter – Physics Education, 2013
We describe recent experiments at CERN in which antihydrogen, an atom made entirely of antimatter, has been held in a magnetic minimum neutral atom trap and subjected to microwave radiation to induce a resonant quantum transition in the anti-atom. We discuss how this, the first experiment to observe an interaction between an antihydrogen atom and…
Descriptors: Science Instruction, Science Experiments, Physics, Magnets
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