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Showing 1 to 15 of 433 results Save | Export
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Palacios Gómez, Jesús; Villagómez, Roque André Eleazar Arroyo – Physics Teacher, 2023
Here, a relatively simple laboratory experiment of a physical pendulum, suitable for students of science and engineering in the first courses of university physics, is presented to illustrate its dynamic behavior and to determine its inertia moment. To this end, a long wooden rod of length L = 99.8 cm and cross-section radius R = 1.73 cm was used…
Descriptors: Physics, Science Instruction, Science Laboratories, Motion
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Lida Khalafi; Nastaran Nikzad; Asayiel Alhajeri; Brandon Bacon; Karla Alvarado; Mohammad Rafiee – Journal of Chemical Education, 2023
The area near the electrode surface is called the diffusion layer, and to understand electrochemistry, it is crucial that students have a knowledge of the phenomena occurring at the diffusion layer. Here, we present a demonstration and activity to visualize and analyze the expansion of a micrometer-sized diffusion layer. The electrode process…
Descriptors: Science Education, Chemistry, Laboratory Equipment, Scientific Concepts
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Pfaender, J.; Gratton, L. M.; Rosi, T.; Onorato, P.; Malgieri, M. – Physics Teacher, 2022
In the last decades spectroscopy began to play an essential role in physics education research with the recognition that atomic spectra constitute a good occasion to study the concepts of quantum mechanics. Moreover, activities in which atomic spectra are studied in order to understand star structure and evolution have proved particularly engaging…
Descriptors: Science Instruction, Physics, Spectroscopy, Scientific Concepts
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Galeriu, Calin – Physics Teacher, 2022
The determination of the speed of sound in air is a classical experiment, usually performed with a resonance tube apparatus. The measured value can be checked against Eq. (1), which describes the temperature dependence of the speed of sound in dry air. A modern implementation of this speed of sound investigation uses an Arduino Uno microcontroller…
Descriptors: Acoustics, Physics, Measurement Equipment, Motion
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Orzolek, Douglas C.; Blilie, Shelley A. – Physics Teacher, 2022
Like many other universities, Musical Acoustics is offered at our school as a lab-based course fulfilling general science requirements for non-majors. The course has been team-taught by a physics professor and music professor since its earliest inception and, by far, the most popular unit explores room acoustics through a variety of activities and…
Descriptors: Physics, Music, Acoustics, Science Laboratories
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Billingsley, Brianna R.; Christenson, Cory W. – Physics Teacher, 2022
A popular introductory physics laboratory experiment is one focusing on Snell's law. This is straightforward to complete with lasers and prisms, but here we present an alternative version that guides the students through some of the major historical developments, recreating and analyzing significant experiments. The discovery of Snell's law has a…
Descriptors: Physics, Science Laboratories, Laboratory Experiments, Scientific Principles
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Greenslade, Thomas B., Jr. – Physics Teacher, 2021
In the museum wing of the Greenslade house is a clock with a two-second pendulum about one meter long. This ticks once per second, and every time it passes through dead center it completes an electrical circuit. When I came to Kenyon in 1964, this system was used to send signals to a series of telegraph relays, which ticked once per second.…
Descriptors: Scientific Concepts, Motion, Science Instruction, Physics
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Lincoln, Don – Physics Teacher, 2021
The history of particle physics can be considered nothing less than a huge triumph for science. Over the course of a little more than a century of effort, our understanding of the world of atomic and subatomic physics went from a vague understanding of atoms, to one that is much more detailed. Early in this hundred-year-long period, we learned…
Descriptors: Physics, Science History, Laboratory Equipment, Science Laboratories
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Minkin, Leonid; Sikes, Daniel – Physics Teacher, 2022
The magnetic field of Earth, B[subscript e], is an intriguing topic in the introductory physics curriculum that engages students' curiosity and inspires numerous speculations about the nature of this phenomenon. There are several methods for measuring Earth's magnetic field. Probably, the most widespread and visual method of measuring the field in…
Descriptors: Physics, Science Instruction, Measurement Techniques, Magnets
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Gfroerer, Tim; Adenew, Michael; Williams, Ella – Physics Teacher, 2022
The Arduino microcontroller is finding its way into labs throughout undergraduate physics curricula, from introductory courses to a variety of beyond-the-first-year laboratory classes. At Davidson College, they use Arduinos in a gateway STEM course for students who are interested in energy and the environment. This article describes how students…
Descriptors: College Science, Physics, Undergraduate Study, Electronic Equipment
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Geske, Matthew; Murray-Weston, Crystal; Lelack, Graham – Physics Teacher, 2022
The Wilson cloud chamber, invented in 1911 by Scottish physicist Charles Wilson, is a remarkably simple and effective charged particle detector. Cloud chambers were used regularly in particle physics experiments for decades, until being supplanted by bubble chambers. In this article, we describe a lab activity that is suitable for…
Descriptors: Science Instruction, Physics, Science Experiments, Science Laboratories
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Bierman, J.; Buckley, D.; Kemper, J.; Greer, A. – Physics Teacher, 2021
In our first-semester introductory physics laboratory, we have an exercise on rotational dynamics. We have recently upgraded the equipment that we use in that exercise without changing the actual exercise. The new equipment has performed well so far, and we wanted to share what we did with others who may be looking for a relatively inexpensive way…
Descriptors: Science Instruction, Science Laboratories, Physics, Introductory Courses
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Salgueiro da Silva, M. A.; Seixas, T. M. – Physics Teacher, 2020
The ammeter-voltmeter method is a general method for measuring electrical resistances that is widely used in the introductory physics laboratory, mostly for pedagogical reasons. Simultaneous readings of current (I) and voltage (V) allow the calculation of electrical resistance (R) using Ohm's law: R = V/I. It is implicitly assumed that electrical…
Descriptors: Science Instruction, Physics, Science Laboratories, Measurement Equipment
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Bell, Michael Scott – Physics Teacher, 2020
Double-slit interference is a difficult phenomenon for students to grasp in an introductory physics course. A thorough understanding of constructive and destructive interference is critical, but even with such an understanding, visualizing exactly how an interference pattern is formed by light passing through two slits can still be a challenge for…
Descriptors: Physics, Scientific Concepts, Light, Science Laboratories
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Singh, Rohit; Singh, Amit Kumar; Singhal, Sonal – Physics Education, 2022
Air pollution is one of our day's significant reasons for human health problems and affects every community throughout the world. Monitoring air pollution is a key aspect of raising awareness and pollution mitigation approaches followed by different nations. This paper targets to develop a low-cost Internet of things-based embedded system to…
Descriptors: Science Experiments, Science Instruction, Pollution, Educational Technology
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