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Lisovskiy, V. A.; Koval, V. A.; Artushenko, E. P.; Yegorenkov, V. D. – European Journal of Physics, 2012
In this paper we suggest a simple technique for validating the Goldstein-Wehner law for a stratified positive column of dc glow discharge while studying the properties of gas discharges in an undergraduate laboratory. To accomplish this a simple device with a pre-vacuum mechanical pump, dc source and gas pressure gauge is required. Experiments may…
Descriptors: Physics, Photography, Science Instruction, Science Laboratories
Vollmer, Michael; Mollmann, Klaus-Peter – European Journal of Physics, 2012
The introduction of modern high-speed cameras in physics teaching provides a tool not only for easy visualization, but also for quantitative analysis of many simple though fast occurring phenomena. As an example, we present a very well-known demonstration experiment--sometimes also discussed in the context of falling chimneys--which is commonly…
Descriptors: Physics, Science Instruction, Photography, Teaching Methods
Gingl, Zoltan; Mingesz, Robert; Makra, Peter; Mellar, Janos – European Journal of Physics, 2011
Photogates are probably the most commonly used electronic instruments to aid experiments in the field of mechanics. Although they are offered by many manufacturers, they can be too expensive to be widely used in all classrooms, in multiple experiments or even at home experimentation. Today all computers have a sound card--an interface for analogue…
Descriptors: Science Experiments, Science Instruction, Computer Software, Computer Uses in Education
Alvarado, S.; Marin, E.; Juarez, A. G.; Calderon, A.; Ivanov, R. – European Journal of Physics, 2012
The implementation of an automated system based on the hot-wire technique is described for the measurement of the thermal conductivity of liquids using equipment easily available in modern physics laboratories at high schools and universities (basically a precision current source and a voltage meter, a data acquisition card, a personal computer…
Descriptors: Physics, Computer Uses in Education, Measurement Techniques, Data Processing
Kopasz, Katalin; Makra, Peter; Gingl, Zoltan – European Journal of Physics, 2011
We present Edaq530, a low-cost, compact and easy-to-use digital measurement solution consisting of a thumb-sized USB-to-sensor interface and measurement software. The solution is fully open-source, our aim being to provide a viable alternative to professional solutions. Our main focus in designing Edaq530 has been versatility and transparency. In…
Descriptors: Measurement, Computer Software, Open Source Technology, Natural Sciences
Kraftmakher, Yaakov – European Journal of Physics, 2011
A laser diode from an inexpensive laser pen (laser pointer) is used in simple experiments. The radiant output power and efficiency of the laser are measured, and polarization of the light beam is shown. The "h/e" ratio is available from the threshold of spontaneous emission. The lasing threshold is found using several methods. With a…
Descriptors: Science Laboratories, Lasers, Computer Uses in Education, Science Experiments
Muller, Thomas; Frauendiener, Jorg – European Journal of Physics, 2011
In a first course of general relativity, it is usually quite difficult for students to grasp the concept of a geodesic. It is supposed to be straight (auto-parallel) and yet it "looks" curved. In these situations, it is very useful to have some explicit examples available which show the different behaviour of geodesics. In this paper, we present…
Descriptors: Geometric Concepts, Science Instruction, Scientific Principles, Physics
Zachariadou, K.; Yiasemides, K.; Trougkakos, N. – European Journal of Physics, 2012
We present a low-cost, fully computer-controlled, Arduino-based, educational laboratory (SolarInsight) to be used in undergraduate university courses concerned with electrical engineering and physics. The major goal of the system is to provide students with the necessary instrumentation, software tools and methodology in order to learn fundamental…
Descriptors: Physics, Computers, Programming Languages, Computer Software
Zhou, Shaona; Han, Jing; Pelz, Nathaniel; Wang, Xiaojun; Peng, Liangyu; Xiao, Hua; Bao, Lei – European Journal of Physics, 2011
Interest in computer-based learning, especially in the use of virtual reality simulations is increasing rapidly. While there are good reasons to believe that technologies have the potential to improve teaching and learning, how to utilize the technology effectively in teaching specific content difficulties is challenging. To help students develop…
Descriptors: Cues, Computer Simulation, Physics, Motion
Li, Ang; Zeng, Jingyi; Yang, Hujiang; Xiao, Jinghua – European Journal of Physics, 2011
In this paper, coupled pendulums with different lengths are studied. Through steel magnets, each pendulum is coupled with others, and a stepping motor is used to drive the whole system. To record the data automatically, we designed a data acquisition system with a CCD camera connected to a computer. The coupled system shows in-phase, locked-phase…
Descriptors: Undergraduate Students, Photography, Educational Technology, Science Experiments
Mylott, Elliot; Klepetka, Ryan; Dunlap, Justin C.; Widenhorn, Ralf – European Journal of Physics, 2011
In this paper, we present a laboratory activity in computed tomography (CT) primarily composed of a photogate and a rotary motion sensor that can be assembled quickly and partially automates data collection and analysis. We use an enclosure made with a light filter that is largely opaque in the visible spectrum but mostly transparent to the near…
Descriptors: Radiation, Science Laboratories, Lighting, Science Activities
Kraftmakher, Yaakov – European Journal of Physics, 2010
Experiments with an electric motor provide good opportunity to demonstrate some basic laws of electricity and magnetism. The aim of the experiments with a low-power dc motor is to show how the motor approaches its steady rotation and how its torque, mechanical power and efficiency depend on the rotation velocity. The tight relationship between the…
Descriptors: Engines, Energy, Science Experiments, Motion
Fernandez Palop, J. I. – European Journal of Physics, 2009
A pedagogical tool that consists of a Java applet has been developed so that undergraduate students in physics can explore the wave behaviour of particles. The applet executes a simulation in which a two-dimensional wave packet moves towards a slit and an obstacle with variable widths. By changing three parameters, slit width, obstacle width and…
Descriptors: Undergraduate Students, Physics, Scientific Concepts, Computer Software
de la Torre, L.; Sanchez, J.; Dormido, S.; Sanchez, J. P.; Yuste, M.; Carreras, C. – European Journal of Physics, 2011
FisL@bs is a network of remote and virtual laboratories for physics university education via the Internet that offers students the possibility of performing hands-on experiments in different fields of physics in two ways: simulation and real remote operation. This paper gives a detailed account of a novel way in physics in which distance learning…
Descriptors: Undergraduate Students, Distance Education, Physics, Science Laboratories
Halasz, Gabor B. – European Journal of Physics, 2009
We present an elementary method to obtain the equations of the shallow-water solitary waves in different orders of approximation. The first two of these equations are solved to get the shapes and propagation velocities of the corresponding solitary waves. The first-order equation is shown to be equivalent to the Korteweg-de Vries (KdV) equation,…
Descriptors: Factor Structure, Motion, Equations (Mathematics), Theories