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Did you mean grading AND physics?

Bringuier, E. – European Journal of Physics, 2009

The paper analyses particle diffusion from a thermodynamic standpoint. The main goal of the paper is to highlight the conceptual connection between particle diffusion, which belongs to non-equilibrium statistical physics, and mechanics, which deals with particle motion, at the level of third-year university courses. We start out from the fact…

Descriptors: Thermodynamics, Mechanics (Physics), Scientific Concepts, Science Instruction

Lima, F. M. S. – European Journal of Physics, 2012

A mathematical derivation of the force exerted by an "inhomogeneous" (i.e. compressible) fluid on the surface of an "arbitrarily shaped" body immersed in it is not found in the literature, which may be attributed to our trust in Archimedes' law of buoyancy. However, this law, also known as Archimedes' principle (AP), does not yield the force…

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

Peer reviewed

School Science Review, 1982

Discusses dice model of exponential radionuclide decay; glancing and collinear perfectly elastic collisions; digital capacitance meter; use of top pan balance in physics; microcomputer calculation of gradient of straight line (includes complete Commodore PET computer program); Fresnel lenses; low-voltage radiant heater; Wheatssone's bridge used as…

Descriptors: College Science, Computer Programs, Higher Education, Laboratory Procedures

Forster, Patricia A. – Research in Science Education, 2004

Interpretation and construction of graphs are central to the study of physics and to performance in physics. In this paper, I explore the interpretation and construction processes called upon in questions with a graphical component, in Western Australian Physics Tertiary Entrance Examinations. In addition, I list errors made by students as…

Descriptors: Foreign Countries, Physics, Graphs, College Entrance Examinations

Marin, E.; Lara-Bernal, A.; Calderon, A.; Delgado-Vasallo, O. – European Journal of Physics, 2011

Some peculiarities of the heat transfer through a sample that is heated by the superficial absorption of light energy under continuous uniform illumination are discussed. We explain, using a different approach to that presented in a recent article published in this journal (Salazar "et al" 2010 "Eur. J. Phys." 31 1053-9), that the front surface of…

Descriptors: Heat, Science Instruction, Thermodynamics, Light

Mundell, Donald W. – Journal of Chemical Education, 2009

Intermolecular forces and surface tension gradients in solutions lead to remarkable flows, known as Marangoni flows, where liquid flows from a region of low surface tension towards higher surface tension. Details of these flows, not visible to the naked eye, are made visible on an overhead projector owing to variation in the index of refraction.…

Descriptors: Projection Equipment, Chemistry, Human Body, Gardening

McKinley, Thomas L. – ProQuest LLC, 2009

Selective catalytic reduction or SCR is coming into worldwide use for diesel engine emissions reduction for on- and off-highway vehicles. These applications are characterized by broad operating range as well as rapid and unpredictable changes in operating conditions. Significant nonlinearity, input and output constraints, and stringent performance…

Descriptors: Engines, Motor Vehicles, Models, Chemical Engineering

Lekner, John – European Journal of Physics, 2007

An interesting variety of pipe cross-sectional shapes can be generated, for which the Navier-Stokes equations can be solved exactly. The simplest cases include the known solutions for elliptical and equilateral triangle cross-sections. Students can find pipe cross-sections from solutions of Laplace's equation in two dimensions, and then plot the…

Descriptors: Geometric Concepts, Equations (Mathematics), Science Instruction, Science Activities

Metz, Steve, Ed. – National Science Teachers Association (NJ3), 2011

The concept of energy is central to all the science disciplines, seamlessly connecting science, technology, and mathematics. For high school and upper middle school teachers, this compendium comprises inquiry-based activities, lesson plans, and case studies designed to help teach increased awareness of energy, environmental concepts, and the…

Descriptors: Energy Education, Science Education, Secondary School Science, Grade 9

Peer reviewed

Moore, Duncan T.; Ryan, Danette P. – Physics Teacher, 1977

Discusses developments in the field of gradient index optical lenses for resolving problems of lens spherical abberration. (SL)

Descriptors: College Science, Light, Optics, Physical Sciences

Binous, Housam – Chemical Engineering Education, 2007

We study four non-Newtonian fluid mechanics problems using Mathematica[R]. Constitutive equations describing the behavior of power-law, Bingham and Carreau models are recalled. The velocity profile is obtained for the horizontal flow of power-law fluids in pipes and annuli. For the vertical laminar film flow of a Bingham fluid we determine the…

Descriptors: Undergraduate Study, Mechanics (Physics), Motion, Profiles

Peer reviewed

Mellen, Walter Roy – Physics Teacher, 1994

Discusses the behavior of objects in fluids having densities that increase with depth. Provides equations and a diagram of the system providing the temperature gradient. (MVL)

Descriptors: Density (Matter), Force, Higher Education, Mechanics (Physics)

Peer reviewed

Vermillion, Robert E. – American Journal of Physics, 1975

Describes an undergraduate experiment. Discusses a model for the behavior of bubbles under differing viscosities and pressure gradients and conditions for failure of the model. (GH)

Descriptors: College Science, Higher Education, Instructional Materials, Laboratory Experiments

Peer reviewed

D'Ydewalle, G.; And Others – British Journal of Educational Psychology, 1981

Subjects from four physics or literature classes expected a delayed or an immediate test after their class. All were tested immediately. Male subjects expecting the immediate test performed better than males expecting a delayed test. Absence of interaction effects with personality measurement suggested the inadequacy of the goal gradient…

Descriptors: Cognitive Style, Expectation, High School Students, High Schools

Peer reviewed

Haynes, Henry W., Jr. – Chemical Engineering Education, 1986

Current chemical engineering textbooks teach that the driving force for diffusive mass transport in ideal solutions is the gradient in mole fraction. This is only true for ideal solution liquids. Therefore, it is shown that the appropriate driving force for use with ideal gases is the gradient in partial pressure. (JN)

Descriptors: Chemical Engineering, Diffusion (Physics), Engineering Education, Higher Education