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Isik, Hakan – Physics Education, 2017
This paper describes the formation of a circumzenithal arc for the purpose of teaching light and optics. A circumzenithal arc, an optic formation rarely witnessed by people, is formed in this study using a water-filled cylindrical glass illuminated by sunlight. Sunlight refracted at the top and side surfaces of the glass of water is dispersed into…
Descriptors: Geometric Concepts, Optics, Light, Science Activities
Kaur, Tejinder; Blair, David; Moschilla, John; Zadnik, Marjan – Physics Education, 2017
The Einstein-First project approaches the teaching of Einsteinian physics through the use of physical models and analogies. This paper presents an approach to the teaching of quantum physics which begins by emphasising the particle-nature of light through the use of toy projectiles to represent photons. This allows key concepts including the…
Descriptors: Science Instruction, Physics, Scientific Principles, Probability
Bruxvoort, Crystal; Jadrich, James – Science Teacher, 2016
Science students should undertake engineering design projects and carry out scientific investigations, as recommended by the "Next Generation Science Standards" (NGSS Lead States 2013). However, studies show that students misconstrue the goals of science and engineering and are uncertain about their respective practices (Gilbert and Wade…
Descriptors: STEM Education, Science Instruction, Equipment, Engineering
Metz, James – Physics Teacher, 2014
Light refracts as it travels from one medium to another. The angle of incidence "i" and the angle of refraction "r" are related by Snell's law, sin"i" ÷ sin"r"="k," where "k" is a constant. The diagram in Fig. 1 shows a geometric representation of the formula for light passing from…
Descriptors: Geometry, Scientific Principles, Light, Geometric Concepts
Ashmann, Scott; Anderson, Charles W.; Boeckman, Heather – Physics Education, 2016
Using real-world examples, ray diagrams, and a cognitive apprenticeship cycle, this paper focuses on developing students' conceptual (not mathematical) understanding of refraction. Refraction can be a difficult concept for students to comprehend if they do not have well-designed opportunities to practice explaining situations where reflection and…
Descriptors: Secondary School Students, Scientific Concepts, Scientific Principles, Scientific Literacy
Nikitichev, D. I.; Xia, W.; Hill, E.; Mosse, C. A.; Perkins, T.; Konyn, K.; Ourselin, S.; Desjardins, A. E.; Vercauteren, T. – Physics Education, 2016
In this paper we present a system aimed at demonstrating the photoacoustic (PA) effect for educational purposes. PA imaging is a hybrid imaging modality that requires no contrast agent and has a great potential for spine and brain lesion characterisation, breast cancer and blood flow monitoring notably in the context of fetal surgery. It relies on…
Descriptors: Demonstrations (Educational), Science Equipment, Science Experiments, Light
Wardani, Tiara B.; Winarno, Nanang – Journal of Science Learning, 2017
The aim of this study was to determine the effect of inquiry-based laboratory activities on the students' understanding of the nature of science (NOS) in learning lights and optics topic. The method used in this research is quasi experiment. Sampling technique using random sampling to class and the samples were taken from grade 8 in one of junior…
Descriptors: Inquiry, Active Learning, Light, Optics
Greenslade, Thomas B., Jr. – Physics Teacher, 2014
Almost everyone "knows" that steam is visible. After all, one can see the cloud of white issuing from the spout of a boiling tea kettle. In reality, steam is the gaseous phase of water and is invisible. What you see is light scattered from the tiny droplets of water that are the result of the condensation of the steam as its temperature…
Descriptors: Science Instruction, Physics, High Schools, Secondary School Science
Tamang, Sushmika; Nopparatjamjomras, Suchai; Chitaree, Ratchapak; Nopparatjamjomras, Thasaneeya R. – Physics Education, 2015
A container was placed on top of a piece of white paper, and a pin positioned so that it vertically touched an outside wall of the container. Students were asked to predict the image of the pin when it was observed from the top of the container. Two scenarios of either an empty container or a container completely filled with water were considered…
Descriptors: Scientific Concepts, Scientific Principles, Critical Thinking, Science Activities
Swinehart, William E.; Zimmerman, Bonnie L.; Powell, Kinsey; Moore, Stephen D.; Iordanov, Tzvetelin D. – Journal of Chemical Education, 2014
A concept of the turbidimetric method for determining the concentration of ethanol in water-ethanol mixtures is described. A closed sample cell containing the analyte was heated to achieve vapor saturation and subsequent condensation. As the condensation occurred, the decrease in percentage transmittance with time due to light scattering was…
Descriptors: Science Instruction, Scientific Principles, Water, Light
Baird, William H.; Hack, W. Nathan; Tran, Kiet; Vira, Zeeshan; Pickett, Matthew – Physics Teacher, 2011
A light-emitting diode (LED) and operational amplifier can be used as an affordable method to provide a digital output indicating detection of an intense light source such as a laser beam or high-output LED. When coupled with a microcontroller, the combination can be used as a multiple photogate and timer for under $50. A similar circuit is used…
Descriptors: Science Activities, Science Instruction, Light, Scientific Principles
Kraftmakher, Yaakov – European Journal of Physics, 2012
Nearly two centuries ago, Fourier discovered that any periodic function of period T can be presented as a sum of sine waveforms of frequencies equal to an integer times the fundamental frequency [omega] = 2[pi]/T (Fourier's series). It is impossible to overestimate the importance of Fourier's discovery, and all physics or engineering students…
Descriptors: Undergraduate Study, Science Laboratories, Science Activities, Engineering Education
Roberts, Larry – Tech Directions, 2011
The word laser is an acronym. It stands for Light Amplification by Stimulated Emission of Radiation. Lasers, invented in 1958, are used to cut and fuse materials, accurately survey long distances, communicate across fiber-optic phone lines, produce 3D pictures, make special effects, help navigation, and read bar codes for cash registers. A laser…
Descriptors: Lasers, Light, Fundamental Concepts, Science Activities
van Staveren, Marie N.; Edwards, Kimberly D.; Apkarian, V. A. – Journal of Chemical Education, 2012
A lab was developed for use in an undergraduate honors and majors general chemistry laboratory to introduce students to optics, spectroscopy, and the underlying principles of quantum mechanics. This lab includes four mini-experiments exploring total internal reflection, the tunneling of light, spectra of sparklers and colored candles, and emission…
Descriptors: Majors (Students), Chemistry, Spectroscopy, Reflection
Susman, Katarina; Cepic, Mojca – Physics Education, 2010
An ordinary flight became an interesting and amusing event when a look through the window of the plane revealed unusual light spots on the winglet. This article discusses the occurance we saw. Two possible explanations are presented. (Contains 8 figures.)
Descriptors: Astronomy, Science Instruction, Light, Scientific Principles
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