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Le Noxaïc, Armand; Fadel, Kamil – Physics Teacher, 2022
The statics of fluids may seem simple at first but often poses problems for students when it comes to applying it to concrete cases. Despite its relatively simple laws, some subtleties, mainly related to the elastic characteristics of a fluid, must be noted. This elasticity allows the pressure exerted in a part of the fluid to propagate in its…
Descriptors: Mechanics (Physics), Scientific Concepts, Scientific Principles, Water
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Cross, Rod – Physics Teacher, 2022
What happens when a perfectly elastic ball collides with a completely inelastic ball? It is shown that the outcome depends on the stiffness of each ball. A standard textbook problem in mechanics is to calculate the outcome of a head-on collision between two balls using conservation of momentum and kinetic energy. It is easily shown that the…
Descriptors: Physics, Science Instruction, Mechanics (Physics), Science Experiments
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Wörner, C. H.; Rojas, Roberto – Physics Teacher, 2021
In this note, the classical Doppler shift for some accelerated mechanical systems is considered under a common graphical approach. In one dimension, we study uniform accelerated motion and simple harmonic motion. In two dimensions, uniform circular motion and pendular motion are considered. In each case, an elementary treatment shows that the…
Descriptors: Mechanics (Physics), Motion, Scientific Concepts, Graphs
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Gainer, Alexandre; Waxman, Michael – Physics Teacher, 2021
Friction is one of the most important forces studied in classical mechanics, and still is the subject of pedagogical literature. In a small series of problems stated below, we consider a particle sliding down a curve under the actions of gravity and kinetic friction. Unlike many of the referenced sources, we neglect the centripetal force arising…
Descriptors: Mechanics (Physics), Scientific Concepts, Kinetics, Motion
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Eichenlaub, Mark – Physics Teacher, 2022
There is a close connection between simple harmonic motion and uniform circular motion. This connection is widely taught and included in standard textbooks. Here, we exploit this connection to simultaneously derive two results from introductory mechanics: the period of a mass-spring system and the centripetal acceleration formula. Previously…
Descriptors: Science Instruction, Scientific Concepts, Motion, Mechanics (Physics)
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Ribeiro, Williams J. M.; de Sousa, J. Ricardo – Physics Teacher, 2021
During elementary physics courses, many examples in mechanics are studied without considering air resistance effects. We can mention, for example, projectile motion and free fall, among many others. Only brief studies of such systems in classical mechanics courses consider linear air resistance (F[subscript drag] [is proportional to] v), which is…
Descriptors: Mechanics (Physics), Motion, Scientific Concepts, Introductory Courses
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Hecht, Eugene – Physics Teacher, 2021
In recent years, there have been a number of articles published concerning whether or not potential energy ("PE") as defined in mechanics is invariant under Galilean transformation. This essay addresses that issue in a different, more fundamental and elegant way than has been done thus far. It recognizes that a considerable change in the…
Descriptors: Energy, Mechanics (Physics), Scientific Concepts, Scientific Principles
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Çoban, Atakan; Erol, Mustafa – Physics Education, 2022
The present study reports an Arduino-based STEM education material that resolves the kinematics of a moving object, specifically focusing on two dimensional motion of the object. Throughout the work, a sample application that can be prepared in a classroom where students are active and including the acquisitions of Technology, Engineering, Physics…
Descriptors: STEM Education, Motion, Science Instruction, Measurement Equipment
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Ackerson, Bruce J. – Physics Teacher, 2020
The Cartesian diver is an old and useful demonstration of fluid-related phenomena, including Archimedes' and Pascal's principles. While the diver gets its name from the scientist and philosopher René Descartes, the first written description of the device was given by Raffaello Magiotti. The modified diver presented here is related to Feynman's…
Descriptors: Demonstrations (Educational), Science Instruction, Mechanics (Physics), Motion
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Olson, Don – Physics Teacher, 2021
Most physics teachers have observed the majestic swings of a monumental pendulum at a science museum and have watched long enough to see the plane of oscillation slowly changing direction as Earth turns. The purpose of Don Olson's article is to describe visits to Paris sites related to Jean Bernard Léon Foucault (1819-1868), with a special focus…
Descriptors: Motion, Mechanics (Physics), Scientists, Laboratory Equipment
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Greenslade, Thomas B., Jr. – Physics Teacher, 2021
About 30 years ago I taught a series of summer enrichment programs for high school physics teachers, using funding from the Howard Hughes Medical Institutes. I deliberately chose teachers from smaller cities and towns who were unlikely to have contact with other physics teachers. One of my more interesting teachers came from a rural area in a far…
Descriptors: Physics, Science Instruction, Mechanics (Physics), Secondary School Science
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Darmendrail, L.; Müller, A. – Physics Teacher, 2021
The standing vertical jump (SVJ) is a classical topic in Newtonian mechanics (Fig. 1). Although the topic has also been treated by others (other terms used are "standing high jump" or "squat jump"), the present paper shows how a smartphone can be used to capture video of a jump and determine the jump height. A crucial…
Descriptors: Physics, Athletics, Handheld Devices, Mechanics (Physics)
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Dromey, Christopher; Richins, Michelle; Low, Tanner – Journal of Speech, Language, and Hearing Research, 2021
Purpose: We examined the effect of bite block insertion (BBI) on lingual movements and formant frequencies in corner vowel and diphthong production in a sentence context. Method: Twenty young adults produced the corner vowels (/u/, /[open back unrounded vowel]/, [ae]/, /i/) and the diphthong /[open back unrounded vowel][near-close near-front…
Descriptors: Mechanics (Physics), Motion, Acoustics, Vowels
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Liby, Bruce W.; Heffernan, Sean – Physics Teacher, 2020
Fitness centers and retail stores have often been accused of using "thinning" mirrors to enhance the images of their clientele. In this paper, the authors build a flatness gauge and use it to measure the curvature of the mirrors at a local fitness center. From these measurements, the image enhancement properties of the mirrors can be…
Descriptors: Physics, Recreational Facilities, Optics, Measurement Equipment
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Padyala, Radhakrishnamurty – Physics Teacher, 2020
The family of paths of ideal projectiles shot from a point with a common value of speed and at different angles to the horizontal has several interesting properties associated with it. For example, Chapou et al. have shown that an ellipse passes through the apexes of these parabolic paths. This observation encouraged us to further explore this…
Descriptors: Physics, Motion, Mechanics (Physics), Science Instruction
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