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Greczylo, Tomasz; Mazur, Piotr; Debowska, Ewa; Wieczorek, Piotr – European Journal of Physics, 2010
This paper presents an experiment in which students determine the mass sensitivity of three crystal quartz resonators, designed to be carried out in "Physics Laboratory II" at the Institute of Experimental Physics, University of Wroclaw. The authors discuss the process of setting up the experiment and the results of the measurements.…
Descriptors: Physics, Science Laboratories, Science Instruction, College Science
Nopparatjamjomras, Suchai; Panijpan, Bhinyo; Huntula, Jiradawan – Physics Education, 2009
We propose a series of experiments involving balance readings of an object naturally floating or forced to be partially or fully immersed in water contained in a beaker sitting on an electronic scale balance. Students were asked to predict, observe and explain each case. The teacher facilitated the learning by asking probing questions, giving…
Descriptors: Measurement Techniques, Water, Science Experiments, Laboratory Experiments
Zimmerma, Seth – Physics Education, 2009
Two curious thought experiments concerning the speed of light are presented which have been used to provoke the interest of undergraduate physics students. (Contains 2 figures.)
Descriptors: Physics, Science Instruction, Light, Undergraduate Study
Anacleto, Joaquim; Pereira, Mario G. – European Journal of Physics, 2009
Using macroscopic thermodynamics, the general law for adiabatic processes carried out by an ideal gas was studied. It was shown that the process reversibility is characterized by the adiabatic reversibility coefficient r, in the range 0 [less than or equal] r [less than or equal] 1 for expansions and r [greater than or equal] 1 for compressions.…
Descriptors: Undergraduate Study, Thermodynamics, Physics, Computation
de Abreu, Rodrigo; Guerra, Vasco – European Journal of Physics, 2009
The null result of the Michelson-Morley experiment and the constancy of the one-way speed of light in the "rest system" are used to formulate a simple problem, to be solved by elementary geometry techniques using a pair of compasses and non-graduated rulers. The solution consists of a drawing allowing a direct visualization of all the fundamental…
Descriptors: Scientific Concepts, Geometric Concepts, Geometry, Science Instruction
Even, C.; Bouquet, F.; Remond, J.; Deloche, B. – European Journal of Physics, 2009
As an experimental project proposed to students in fourth year of university, a viscometer was developed, consisting of a small magnet levitating in a viscous fluid. The viscous force acting on the magnet is directly measured: viscosities in the range 10-10[superscript 6] mPa s are obtained. This experiment is used as an introduction to complex…
Descriptors: Physics, Measurement Techniques, Magnets, Science Experiments
Heck, Andre; Vonk, Ron – Physics Education, 2009
Physics teachers often like to discuss physics concepts with their students on the basis of simple demonstration experiments. In this article, we discuss an experiment for which one only needs a few coins of the same denomination and a wooden stick: the coins are laid alongside the stick on a horizontal surface, the stick is rotated about one of…
Descriptors: Physics, Science Instruction, Demonstrations (Educational), Science Experiments
Iniguez, J.; Raposo, V. – European Journal of Physics, 2009
In this paper we analyse the behaviour of a small-scale model of a magnetic levitation system based on the Inductrack concept. Drag and lift forces acting on our prototype, moving above a continuous copper track, are studied analytically following a simple low-speed approach. The experimental results are in good agreement with the theoretical…
Descriptors: Measures (Individuals), Science Laboratories, Magnets, Physics
Mitchell, Joseph D.; Petrov, Nikola P. – European Journal of Physics, 2009
We apply several physical ideas to determine the steady temperature distribution in a medium moving with uniform velocity between two infinite parallel plates. We compute it in the coordinate frame moving with the medium by integration over the "past" to account for the influence of an infinite set of instantaneous point sources of heat in past…
Descriptors: Physics, Climate, Motion, Science Instruction
Essen, Hanno; Apazidis, Nicholas – European Journal of Physics, 2009
We study the turning point problem of a spherical pendulum. The special cases of the simple pendulum and the conical pendulum are noted. For simple initial conditions the solution to this problem involves the golden ratio, also called the golden section, or the golden number. This number often appears in mathematics where you least expect it. To…
Descriptors: Laboratory Equipment, Mathematical Concepts, Motion, Scientific Concepts
Bronner, Patrick; Strunz, Andreas; Silberhorn, Christine; Meyn, Jan-Peter – European Journal of Physics, 2009
Single photons are used for fundamental quantum physics experiments as well as for applications. Originally being a topic of advance courses, such experiments are increasingly a subject of undergraduate courses. We provide interactive screen experiments (ISE) for supporting the work in a real laboratory, and for students who do not have access to…
Descriptors: Undergraduate Study, Optics, Quantum Mechanics, Science Instruction
Dewanto, Andreas; Hea, Roland Su Jong – Physics Education, 2009
We report a school project which equips students with both theoretical and practical knowledge in material physics. We construct dumpling skins from a mixture of flour and water. A series of experiments is then conducted to quantify the toughness, hardness, and tensile strength of the skins, and how they are affected by adding other materials into…
Descriptors: Physics, Science Instruction, Scientific Concepts, Science Experiments
Gragson, Derek E.; Beaman, Dan; Porter, Rhiannon – Journal of Chemical Education, 2008
Two experiments are described in which students explore phase transitions and critical phenomena by obtaining compression isotherms of phospholipid monolayers using a Langmuir trough. Through relatively simple analysis of their data students gain a better understanding of compression isotherms, the application of the Clapeyron equation, the…
Descriptors: Chemistry, Scientific Concepts, Physics, Science Experiments
Andrews, D. G. H. – European Journal of Physics, 2008
A simple student experiment investigating dependence on air pressure of the attenuation of alpha particles in air is described. An equation giving the pressure needed to absorb all alpha particles of a given energy is derived from the Bethe-Bloch formula. Results are presented for the attenuation of alpha particles from americium 241 and radium…
Descriptors: Science Experiments, Equations (Mathematics), Science Instruction, Molecular Structure
Price, Colin B. – Physics Education, 2008
Computer games such as Unreal Tournament (UT2004 and UT3) contain a "physics engine" responsible for producing believable dynamic interactions between players and objects in the three-dimensional (3D) virtual world of a game. Through a series of probing experiments we have evaluated the fidelity and internal consistency of the UT2004 physics…
Descriptors: Physics, Engines, Science Instruction, Educational Games