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Rex Taibu; Lloyd M. Mataka – Electronic Journal for Research in Science & Mathematics Education, 2025
To explain experiences of riders of rotating systems, such as a merry-go-round, some physics educators have employed the concept of 'centrifugal force.' However, others have suggested that the term is unnecessary in explaining experiences in rotating systems and that it encourages misconceptions surrounding circular motion dynamics. Owing to this…
Descriptors: Textbooks, Motion, Physics, Scientific Concepts
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Hinrichsen, Peter F. – Physics Teacher, 2022
Modern MEMs gyros/accelerometers allow the angular velocity of pendula to be precisely measured and the angular acceleration to be calculated. For a compound pendulum, "I"[subscript p][umlaut over theta]=-"mga" sin[theta]Ip[umlaut over theta]=-mgasin[theta], where "a" is the distance of the center of mass from the…
Descriptors: Motion, Scientific Concepts, Physics, Measurement
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Shen Yong Ho; R. Subramaniam – Research in Science & Technological Education, 2024
Background: Recognizing the relatively few studies that have explored university students' understanding and alternative conceptions in linear and circular motion as well as the relatively few studies that have used 2-dimensional multiple-choice questions (MCQs) in the science education literature, this study set out to contribute to these areas.…
Descriptors: Undergraduate Students, Motion, Scientific Concepts, Concept Formation
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Mohd Zaidi Amiruddin; Achmad Samsudin; Andi Suhandi; Bayram Costu – Journal of Education and Learning (EduLearn), 2025
Difficulties in understanding physics concepts are often experienced by students such as in the material of regular uniform motion. This study aims to describe the mental models of first-year secondary school students on regular straight-line motion. This research utilized a case study method of 167 students at the secondary level with an average…
Descriptors: High School Students, Physics, Scientific Concepts, Schemata (Cognition)
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Greenstein, George – Physics Teacher, 2022
We describe a simple, intuitively appealing interpretation of the observed ellipsoidal shape of the rotating Earth: it is that surface everywhere perpendicular to the net force upon it.
Descriptors: Science Instruction, Scientific Concepts, Physics, Motion
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Lin, Zhiqi; Xie, Yuchan; Tu, Chaoshi – Physics Teacher, 2023
Acceleration of moving objects is usually measured by photoelectric gates. In this paper, a method of acceleration measurement is proposed by pasting white card stock and black tape on a pulley and then using an Arduino to time the motion. This method only needs one photoelectric sensor to measure the acceleration. In contrast, using photoelectric…
Descriptors: Science Instruction, Physics, Scientific Concepts, Measurement Techniques
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Fletcher, Kurtis A.; Lallier, Nicole M.; Masman, Jack M. – Physics Teacher, 2023
Inspired by a commercially produced scattering experiment that was popular beginning in the 1960s, we have developed a Nerf-projectile-based educational activity to demonstrate the basics of particle scattering experiments.
Descriptors: Science Experiments, Science Instruction, Physics, Motion
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Cross, Rod – Physics Education, 2022
If an empty coffee cup is spun on a horizontal surface about a vertical axis in an anti-clockwise direction, then the whole cup rotates slowly backwards, in a clockwise direction, about a vertical axis located outside the cup. Clues to this curious behaviour are presented by comparing it with other spinning objects.
Descriptors: Science Instruction, Physics, Motion, Scientific Concepts
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Toepker, Terrence – Physics Teacher, 2022
How many vertical jumps does it take to jump off of a rotating merry-go-round (MGR)? The answer is hidden in the expression: "r[subscript n]" = "r[subscript 0]" (1 + ["beta superscript 2") ["superscript n/2"]. When you make a vertical jump on a train moving on a straight line at constant speed (inertial…
Descriptors: Science Instruction, Physics, Scientific Concepts, Motion
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Aji, Mahardika Prasetya; Rahmawati, Ita; Imtinan, Nisrina; Permatasari, Hestining Ajeng; Hidayah, Husnul; Linuwih, Suharto; Priyanto, Aan; Yusmantoro, Yusmantoro – Physics Teacher, 2022
The center of mass (CM) is an abstract quantity but essential as a reference point used to understand the position and movement of an object or a system of objects. Many researchers have used video recordings to analyze and understand the movement of objects in a system. In a system with colliding objects, the motion can be obtained precisely from…
Descriptors: Scientific Concepts, Physics, Motion, Video Technology
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Perry, Spencer – Physics Teacher, 2022
The use of toys as teaching aids in physics classrooms has a rich history, and the role of play in science education is a well-established line of research. Much of what has been written on the topic has included discussions of specific toys and the implications of using those toys to teach physics. One of the toys from my childhood that seems to…
Descriptors: Physics, Science Instruction, Scientific Concepts, Toys
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Morris, Steven L. – Physics Teacher, 2023
The relativistic addition of velocities is usually introduced early in the study of Einstein's special theory of relativity. The equations are simple enough, but randomly chosen velocities lead to unwieldy calculations that can dishearten the student. This paper presents tables of velocity components in two dimensions, composed of five or fewer…
Descriptors: Science Instruction, Scientific Concepts, Concept Formation, Physics
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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)
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Ng, Chiu-king – Physics Teacher, 2022
In this paper, we utilize the readily known theory of the ideal transformer to furnish a self-contained qualitative explanation on the AC-powered Thomson jumping ring (TJR) experiment.
Descriptors: Science Experiments, Science Instruction, Physics, Scientific Concepts
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Cross, Rod – Physics Teacher, 2022
The trajectory of a ball in air is affected by aerodynamic drag and lift. In general, the trajectory needs to be calculated numerically since the acceleration varies with time in both the horizontal and vertical directions. If the trajectory remains approximately parabolic, then simple analytical solutions can be found, giving useful insights into…
Descriptors: Science Instruction, Scientific Concepts, Physics, Computation
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