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Did you mean grading AND physics?
Showing 1 to 15 of 45 results Save | Export
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Phage, Itumeleng B.; Lemmer, Miriam; Hitge, Mariette – African Journal of Research in Mathematics, Science and Technology Education, 2017
Students' graph comprehension may be affected by the background of the students who are the readers or interpreters of the graph, their knowledge of the context in which the graph is set, and the inferential processes required by the graph operation. This research study investigated these aspects of graph comprehension for 152 first year…
Descriptors: Foreign Countries, Graphs, Comprehension, Cognitive Processes
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Aguilar, Horacio Munguía; Maldonado, Rigoberto Franco; Navarro, Luis Barba – Physics Education, 2018
In hydrostatics, pressure measurement with U-gauges and their relationship to density is a well-known experiment. Very little is studied or experimented with the dynamics of the movement of a liquid in a U-tube probably due to its theoretical complexity but, after all, it is a simple damped oscillating system. In this paper we present a relatively…
Descriptors: Science Instruction, Physics, Science Experiments, Laboratory Experiments
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Wee, Loo Kang; Tan, Kim Kia; Leong, Tze Kwang; Tan, Ching – Physics Education, 2015
This paper reports the use of Tracker as a computer-based learning tool to support effective learning and teaching of "toss up" and free fall motion for beginning secondary three (15?year-old) students. The case study involved (N = 123) students from express pure physics classes at a mainstream school in Singapore. We used eight…
Descriptors: Computer Assisted Instruction, Motion, Physics, Scientific Concepts
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Humbert, Richard – Physics Teacher, 2010
A force acting on just part of an extended object (either a solid or a volume of a liquid) can cause all of it to move. That motion is due to the transmission of the force through the object by its material. This paper discusses how the force is distributed to all of the object by a gradient of stress or pressure in it, which creates the local…
Descriptors: Physics, Science Instruction, Motion, Scientific Principles
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Vollmer, M. – Physics Education, 2009
Although mostly not perceived consciously, mirages are very familiar phenomena of everyday life. They can generally occur if light is incident on media with a gradient of refractive index. This article starts with the easiest mirage effect, known as astronomical refraction, then presents examples for inferior and superior multiple image mirages,…
Descriptors: Physics, Laboratory Experiments, Science Laboratories, Scientific Concepts
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Gluck, Paul – Physics Teacher, 2007
The bending of a laser beam in a medium with a density and refractive index gradient in the same direction has been described previously. When a transparent container is half filled with a salt or sugar solution and an equal amount of water is floated on top of it, then diffusion will create a concentration gradient from top to bottom. A laser…
Descriptors: Optics, Physics, Scientific Concepts, Light
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Seedhouse, Steven J.; Hoffmann, Markus M. – Journal of Chemical Education, 2008
A nuclear magnetic resonance (NMR) spectroscopy experiment for the undergraduate physical chemistry laboratory is described that encompasses both qualitative and quantitative pedagogical goals. Qualitatively, the experiment illustrates how images are obtained in magnetic resonance imaging (MRI). Quantitatively, students experience the…
Descriptors: Chemistry, Diagnostic Tests, Spectroscopy, Undergraduate Study
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Ibekwe, R. T.; Cullerne, J. P. – Physics Education, 2016
Under certain conditions a body of hot liquid may cool faster and freeze before a body of colder liquid, a phenomenon known as the Mpemba Effect. An initial difference in temperature of 3.2 °C enabled warmer water to reach 0 °C in 14% less time than colder water. Convection currents in the liquid generate a temperature gradient that causes more…
Descriptors: Science Instruction, Physics, Scientific Concepts, Thermodynamics
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Helseth, L. E. – European Journal of Physics, 2011
We propose a simple and fascinating experiment for studying diffusion in gels using a pH-sensitive dye. By doping agar with methyl red, we obtain a gel which rapidly reacts to changes in pH by changing its absorption spectrum. The pH gradients can be followed using a digital camera, and we demonstrate here that the pH-sensitive colour changes can…
Descriptors: Photography, Chemistry, Experiments, Visual Stimuli
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Heavers, Richard M. – Physics Teacher, 2007
Our physics students like to watch a ball bouncing underwater. They do this by dropping a weighted plastic ball into a 1000-ml cylinder filled with a linearly stratified salt-water solution at room temperature. The ball oscillates and comes to rest at about mid-depth. Its motion is analogous to the damped vertical oscillations of a mass hanging…
Descriptors: Science Instruction, Scientific Principles, Mechanics (Physics), Water
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Jaafar, Rosly; Nazihah Mat Daud, Anis; Ali, Shaharudin; Kadri Ayop, Shahrul – Physics Education, 2017
In this study we constructed a special three-in-one resonance tube for a harmonic series sound waves experiment. It is designed for three different experiments: both-open-end, one-closed-end and both-closed-end tubes. The resonance tube consists of a PVC conduit with a rectangular hole, rubber tube, plastic stopper with an embedded microphone and…
Descriptors: Physics, Science Instruction, Acoustics, Science Experiments
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Ribeiro, Isabel A. C.; Faustino, Ce´lia M. C.; Guedes, Rita C.; Alfaia, Anto´nio J. I.; Ribeiro, Maria H. L. – Journal of Chemical Education, 2015
The transport of molecules across biological membranes are critical for most cellular processes. Membrane permeability is also a key determinant for drug absorption, distribution, and elimination. Diffusion, that is, the migration of matter down a concentration gradient, is a simple mechanism by which both endogenous and drug molecules can enter…
Descriptors: Chemistry, Physics, Science Experiments, Health Sciences
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Wang, Liang-Bi; Zhang, Qiang; Li, Xiao-Xia – European Journal of Physics, 2009
This paper aims to contribute to a better understanding of convective heat transfer. For this purpose, the reason why thermal diffusivity should be placed before the Laplacian operator of the heat flux, and the role of the velocity gradient in convective heat transfer are analysed. The background to these analyses is that, when the energy…
Descriptors: Energy Conservation, Energy, Physics, Science Instruction
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de Izarra, Charles; de Izarra, Gregoire – European Journal of Physics, 2011
This paper deals with the study of a toy CD hovercraft used in the fluid mechanics course for undergraduate students to illustrate the lubrication theory described by the Stokes equation. An experimental characterization of the toy hovercraft (measurements of the air flow value, of the pressure in the balloon and of the thickness of the air film…
Descriptors: Undergraduate Students, Mechanics (Physics), Toys, College Science
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Garvin-Doxas, Kathy; Klymkowsky, Michael W. – CBE - Life Sciences Education, 2008
While researching student assumptions for the development of the Biology Concept Inventory (BCI; http://bioliteracy.net), we found that a wide class of student difficulties in molecular and evolutionary biology appears to be based on deep-seated, and often unaddressed, misconceptions about random processes. Data were based on more than 500…
Descriptors: Molecular Biology, Misconceptions, Evolution, Scientific Concepts
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