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Kaufman, Richard – European Journal of Physics Education, 2019
The first law of thermodynamics does not forbid heat engines with 100% thermodynamic efficiency; it is the second law of thermodynamics which states that heat engines cannot obtain 100% efficiency. Can the first law ever show this second law result? Yes. We show that the first law alone can show that some heat engines cannot achieve efficiencies…
Descriptors: Thermodynamics, Scientific Principles, Heat, Efficiency
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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
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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)
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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
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Carchon, Roland; Segers, Danny – European Journal of Physics Education, 2015
We repeated the historical infra-red radiation experiments performed by Melloni, to investigate why, at the end of his life, he came to the conclusion that radiation from light and heat rely on the same basic principle, what has been translated as the so called unitary formalism. In doing so, we profited from a Master thesis on heat radiation and…
Descriptors: Physics, Science Instruction, Radiation, Teaching Methods
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Forjan, Matej; Sliško, Josip – European Journal of Physics Education, 2014
This article presents the results of an analysis of three Slovenian textbooks for high school physics, from the point of view of simplifications and idealizations in the field of mechanics. In modeling of physical systems, making simplifications and idealizations is important, since one ignores minor effects and focuses on the most important…
Descriptors: Mechanics (Physics), High Schools, Curriculum, Curriculum Research
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Matehkolaee, M. Jafari; Asrami, A. Naderi – European Journal of Physics Education, 2013
In this paper we have a full review on the surface charge density at disordered conductor surfaces. Basically, reading text books does not resolve ambiguities in this field. As far as is possible, we have tried to the concepts easier to turn. In fact we will answer two questions. One of them is that why do charges tend to go where the curvature is…
Descriptors: Scientific Concepts, Physics, Science Instruction, Energy
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MacLeod, Katarin – European Journal of Physics Education, 2013
Science, technology, society, and environment (STSE) education has recently received attention in educational research, policy, and science curricular development. Fewer strides have been made in examining the connections between STSE education and learning/teaching physics. Examples of moving STSE theory into practice within a physics classroom…
Descriptors: STEM Education, Physics, Science Education, Correlation
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Riggs, Peter J. – European Journal of Physics Education, 2013
Students often wrestle unsuccessfully with the task of correctly calculating momentum probability densities and have difficulty in understanding their interpretation. In the case of a particle in an "infinite" potential well, its momentum can take values that are not just those corresponding to the particle's quantised energies but…
Descriptors: Science Instruction, Scientific Concepts, Computation, Motion
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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
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Moore, J. Christopher – European Journal of Physics Education, 2012
University and high school students not pursuing a science, technology, engineering, and/or mathematics (STEM) course of study demonstrate less developed scientific reasoning than their STEM-based peers. Previous studies show that the majority of non-STEM students can be classified as either concrete operational or transitional reasoners in…
Descriptors: Nonmajors, College Science, Scientific Literacy, Thinking Skills
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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
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Dykstra, Dewey I., Jr. – European Journal of Physics Education, 2012
For a little over 40 years, what we label now physics education research has been conducted. As a result, a new type of theme in the research and in physics education has emerged. Some of these themes are cognitivism, research as qualitative, learning as construction of knowledge, theoretical underpinnings that are not realist, student-centered…
Descriptors: Science Instruction, Physics, Educational Research, Scientific Concepts
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Baytak, Ahmet – European Journal of Physics Education, 2011
The tendency that there is a global warming issue and the environmental disaster through out the world became top news in media. While scientist and politicians are gathering to find solution for the environmental issues, educators are aware of that a sustainable future needs an effective education for today's children. However, how these children…
Descriptors: Environmental Education, Literature Reviews, Teaching Methods, Conservation (Environment)
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Slisko, Josip; Hadzibegovic, Zalkida – European Journal of Physics Education, 2011
Since long time ago, many authors advocated for more presence of physics history in physics teaching and learning in order to give students a better vision of the "nature of science", in other words, to let them learn not only established physics knowledge but also the ways of how physicists managed to get that knowledge. Generally,…
Descriptors: Textbooks, Physics, Science Instruction, Science History