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Krusberg, Zosia; Coalson, Elam; Feldman, Andrew – Physics Teacher, 2023
One of the objectives of the undergraduate physics curriculum is for students to become aware of the connections between formal physical principles and personal experience. However, research has shown that awareness of connections between the abstract and the experiential tends to deteriorate, sometimes significantly, after instruction in…
Descriptors: Magnets, Undergraduate Students, Physics, Science Education
Berger, Roland; Lensing, Philipp – Physics Teacher, 2023
In physics education, the topic of electromagnetic induction is an important but also challenging topic for many students. The early introduction of formulae, e.g., Faraday's law of induction, seems to hinder rather than to foster the understanding of the topic's underlying principles. In this paper, we present the basic idea for a teaching…
Descriptors: Teaching Methods, Magnets, Physics, Computer Simulation
Álvaro Suárez; Arturo C. Martí; Kristina Zuza; Jenaro Guisasola – European Journal of Physics Education, 2023
The question of the sources of electric and magnetic fields and their causes has been discussed extensively in the literature over the last decades. In this article, we approach this problem from the unified treatment of electromagnetic fields emphasizing the role of their sources in accordance with the cause-effect relationships. First, we…
Descriptors: Energy, Magnets, Science Instruction, Equations (Mathematics)
Morris, Steven L. – Physics Teacher, 2022
It is difficult for an instructor to just make up valid numbers for B[subscript x], B[subscript y], B[subscript z], E[subscript x], E[subscript y], and E[subscript z] in the creation of homework problems and test questions calculating the Poynting vector. In this paper, 25 examples are given of the electric and magnetic fields of electromagnetic…
Descriptors: Science Instruction, Physics, Energy, Magnets
Kyla Adams; Anastasia Lonshakova; David Blair; David Treagust; Tejinder Kaur – Teaching Science, 2024
Quantum science is in the news daily and engages students' interest and curiosity. A fundamental quantum science concept that underpins medical imaging, quantum computing and many future technologies is quantum spin. Quantum spin can explain many physical phenomena that are in the lower secondary school curriculum, such as magnetism and light,…
Descriptors: Quantum Mechanics, Science Instruction, Physics, Science Activities
Saslow, Wayne M. – Physics Teacher, 2021
Although the phrase "seat of EMF" in describing chemical cells has fallen into disuse, by distinguishing the distinct but incorrect conceptions both of Galvani and of Volta, in favor of the correct view of Faraday, "seat of EMF" it becomes possible (among other things) to understand: (1) why internal resistance really is…
Descriptors: Energy, Scientific Concepts, Physics, Magnets
Álvaro Suárez; Arturo C. Marti; Kristina Zuza; Jenaro Guisasola – Physical Review Physics Education Research, 2024
We investigate learning difficulties among second-year students in electromagnetism courses when they apply Ampère-Maxwell's law. Using phenomenography, we analyzed written answers from 65 undergraduate physics students to four questions on Ampère's and Ampère-Maxwell's laws. We complemented our research by interviewing 12 students. To design the…
Descriptors: Learning Problems, Undergraduate Students, Energy, Magnets
Chhabra, Mahima; Das, Ritwick – Physics Education, 2023
Electrostatic force is the preliminary and fundamental topic that forms the bedrock on which the conceptual framework of "electromagnetism" is built. Being a 'vector' quantity, electromagnetic force naturally inherits direction as well as magnitude. The conceptualization of such physical quantities may pose a challenge. The present work…
Descriptors: Science Instruction, Energy, Scientific Concepts, Physics
Saslow, Wayne Mark – Physics Teacher, 2022
This work provides a missing manual needed to understand permanent magnets (also known as "hard" magnets), the only source of "magnetic induction field B" (units of teslas), often called the magnetic field, that students are familiar with when they confront magnetic force acting on moving charges. Students see this magnetic…
Descriptors: Science Instruction, Magnets, Scientific Concepts, Electronic Equipment
Lincoln, James – Physics Teacher, 2020
It has now been over 100 years since Heinrich Barkhausen published his description of a crackling sound heard when a piece of iron is magnetized inside of a coil wired to a set of headphones, and this phenomenon provided evidence for the theory of magnetic domains. Traditionally, this effect is performed as a demonstration by connecting the coil…
Descriptors: Physics, Acoustics, Magnets, Audio Equipment
Hermann Härtel – European Journal of Physics Education, 2021
The question of whether Faraday's flux law is universal or whether there are exceptions has long been controversial. This discussion seemed to have recently concluded in favor of the generality of Faraday's Flux Law. The present article raises this question again with the aid of some rather simple measurements carried out on a Faraday generator.…
Descriptors: Science Instruction, Scientific Principles, Measurement, Energy
Christoph Hoyer; Raimund Girwidz – Physical Review Physics Education Research, 2024
Vector fields are a highly abstract physical concept that is often taught using visualizations. Although vector representations are particularly suitable for visualizing quantitative data, they are often confusing, especially when describing real fields such as magnetic and electric fields, as the vector arrows can overlap. The present study…
Descriptors: Science Instruction, Teaching Methods, Physics, Scientific Concepts
Campos, Esmeralda; Zuza, Kristina; Guisasola, Jenaro; Zavala, Genaro – Physical Review Physics Education Research, 2023
We conducted a study with introductory and upper-division physics students in a Mexican university to learn how students independently recognize the electric field's main characteristics in the electric field lines diagram and as a source or target representation in conversion processes. We used the theory of registers of semiotic representations…
Descriptors: Physics, Science Instruction, Energy, Scientific Concepts
Haertel, Hermann – Physics Teacher, 2022
The question of how the processes around the Faraday generator with its rotating magnet should be interpreted has been controversial since its discovery by Faraday. Does the magnetic field rotate together with the rotating magnet or does it remain stationary? Furthermore, does one only need Faraday's flux law to interpret inductive processes, or…
Descriptors: Science Instruction, Physics, Laboratory Equipment, Magnets
Pathak, Praveen; Patel, Yogita – Physics Teacher, 2022
A smartphone magnetometer is used to record the magnetic field of a freely falling point dipole magnet. The recorded magnetic field vs. time data are analyzed in accordance with the spatial dependence of the magnetic field to calculate the acceleration due to gravity g. The experiment gives local g to be 9.79 ± 1.9% m/s[superscript 2].
Descriptors: Science Instruction, Magnets, Physics, Science Experiments