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Dean, Kevin – European Journal of Physics Education, 2018

The conical pendulum provides a rich source of theoretical and computational analysis and the present work presents a seamless continuation of the previous publication. The tension force F[subscript T] and centripetal force F[subscript C] are explored further in linearization analyses and the appropriate slopes are explained. A similar analysis is…

Descriptors: Science Instruction, Physics, Motion, Scientific Concepts

Arlego, Marcelo; Fanaro, Maria de los Angeles – European Journal of Physics Education, 2017

In this work, we present a pedagogical strategy to describe the diffraction phenomenon based on a didactic adaptation of the Feynman's path integrals method, which uses only high school mathematics. The advantage of our approach is that it allows to describe the diffraction in a fully quantum context, where superposition and probabilistic aspects…

Descriptors: Science Instruction, Physics, Light, Scientific Concepts

Dean, Kevin – European Journal of Physics Education, 2017

This paper represents a continuation of the theoretical and computational work from an earlier publication, with the present calculations using exactly the same physical values for the lengths L (0.435 m - 2.130 m) for the conical pendulum, mass m = 0.1111 kg, and with the local value of the acceleration due to gravity g = 9.789 ms[superscript…

Descriptors: Physics, Science Instruction, Graphs, Equations (Mathematics)

Dean, Kevin; Mathew, Jyothi – European Journal of Physics Education, 2016

A theoretical analysis is presented, showing the derivations of seven different linearization equations for the conical pendulum period "T", as a function of radial and angular parameters. Experimental data obtained over a large range of fixed conical pendulum lengths (0.435 m-2.130 m) are plotted with the theoretical lines and…

Descriptors: Equations (Mathematics), Motion, Science Experiments, Physics

Restricted Closed Shell Hartree Fock Roothaan Matrix Method Applied to Helium Atom Using Mathematica

Acosta, César R.; Tapia, J. Alejandro; Cab, César – European Journal of Physics Education, 2014

Slater type orbitals were used to construct the overlap and the Hamiltonian core matrices; we also found the values of the bi-electron repulsion integrals. The Hartree Fock Roothaan approximation process starts with setting an initial guess value for the elements of the density matrix; with these matrices we constructed the initial Fock matrix.…

Descriptors: Science Instruction, Physics, Matrices, Scientific Concepts

Koutandos, Spyridon – European Journal of Physics Education, 2013

In this article we examine cases of more classical and less classical nature compared to results found by quantum mechanics and attribute a form of Free Energy discontinuity for each case within a boundary layer. The concept of a boundary layer is broadened as to include areas of first or second variations of the Gibbs free energy. It is…

Descriptors: Science Instruction, Quantum Mechanics, Mechanics (Physics), Energy

Bertel, Erminald – European Journal of Physics Education, 2013

Due to progress in nanotechnology high-quality quantum wires can nowadays be fabricated. The behavior of particles in one dimension differs significantly from that in three-dimensional (3D) systems, yet the physics of such low-dimensional systems is generally not very well represented in standard undergraduate or graduate curricula. For instance,…

Descriptors: Science Instruction, Physics, Scientific Concepts, Scientific Principles

Sazonov, Sergey N. – European Journal of Physics Education, 2013

The purpose of this article is to give the intelligible procedure for undergraduate students to grasp proof of the fact that the magnetic field outside the hollow superconducting sphere (superconducting shell) coincides with the field of a point magnetic dipole both when an uniform external magnetic field is applied as when a ferromagnetic sphere…

Descriptors: Science Instruction, College Science, Undergraduate Students, Magnets

Sznitman, Josué; Stone, Howard A.; Smits, Alexander J.; Grotberg, James B. – European Journal of Physics Education, 2013

Dimensional analysis is often a subject reserved for students of fluid mechanics. However, the principles of scaling and dimensional analysis are applicable to various physical problems, many of which can be introduced early on in a university physics curriculum. Here, we revisit one of the best-known examples from a first course in classic…

Descriptors: Science Instruction, Physics, Mechanics (Physics), Motion

Hutem, Artit; Kerdmee, Supoj – European Journal of Physics Education, 2013

The propose of this study is to study Physics Learning Achievement, projectile motion, using the Mathematica program of Faculty of Science and Technology Phetchabun Rajabhat University students, comparing with Faculty of Science and Technology Phetchabun Rajabhat University students who study the projectile motion experiment set. The samples are…

Descriptors: Physics, Science Instruction, Science Achievement, Motion

Koutandos, Spyridon – European Journal of Physics Education, 2012

In this article we discuss the concept of equilibrium establishment in four most usual instances as is electrostriction and vaporization as related to the concept of equilibrium shell formation. Two more cases are then studied which are of relevance. One is the Brownian movement, the study of which is essential for pedagogical reasons as to…

Descriptors: Science Instruction, Physics, Energy, Scientific Concepts

Deriving the Work Done by an Inverse Square Force in Non-Calculus-Based Introductory Physics Courses

Hu, Ben Yu-Kuang – European Journal of Physics Education, 2012

I describe a method of evaluating the integral of 1/r[superscript 2] with respect to r that uses only algebra and the concept of area underneath a curve, and which does not formally employ any calculus. This is useful for algebra-based introductory physics classes (where the use of calculus is forbidden) to derive the work done by the force of one…

Descriptors: Science Instruction, Physics, Algebra, Scientific Concepts

Dunlap, Richard A. – European Journal of Physics Education, 2012

It is shown that for different ratios of lattice parameters, "c/a," the body centered tetragonal structure may be view as body centered tetragonal, body centered cubic, face centered cubic or hexagonal. This illustrates that the apparent symmetry of a lattice depends on the choice of the conventional unit cell.

Descriptors: Science Instruction, Physics, Scientific Concepts, Molecular Structure

Tongaonkar, S. S.; Khadse, V. R. – European Journal of Physics Education, 2011

Conical pendulum is similar to simple pendulum with the difference that the bob, instead of moving back and forth, swings around in a horizontal circle. Thus, in a conical pendulum the bob moves at a constant speed in a circle with the string tracing out a cone. This paper describes an experiment with conical pendulum, with determination of g from…

Descriptors: Physics, Science Instruction, Science Experiments, Motion

Tambade, Popat S. – European Journal of Physics Education, 2011

The objective of this article is to graphically illustrate to the students the physical phenomenon of motion of charged particle under the action of simultaneous electric and magnetic fields by simulating particle motion on a computer. Differential equations of motions are solved analytically and path of particle in three-dimensional space are…

Descriptors: Motion, Scientific Concepts, Science Instruction, Computer Uses in Education

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