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Showing 31 to 45 of 3,895 results Save | Export
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Wagoner, Kasey; Flanagan, Daniel – Physics Teacher, 2019
This paper describes a new lab experiment where students explore the magnetic force on a permanent magnet placed inside a short solenoid. This lab is the fourth experiment performed in the second semester of the calculus-based introductory physics course at Washington University in St. Louis. The experiment is performed using a speaker (which…
Descriptors: Laboratory Experiments, Science Experiments, Magnets, Physics
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Chiang, Chun-Ming; Cheng, Han-Yang – Physics Teacher, 2019
This study aims to measure Brewster's angle of glass and acrylic brick with an easy-to-obtain mobile application (app) by changing the tungsten light source to a red laser. The popularization of the smartphone has inspired many to use its various built-in sensors to carry out general physics experiments. Many others have adopted both a laser and a…
Descriptors: Physics, Science Instruction, Measurement, Telecommunications
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Holt, Megan; Gillen, Daniel; Nandlall, Sacha D.; Setter, Kevin; Thorman, Paul; Kane, Suzanne Amador; Miller, Christa Hixson; Cook, Chelsea; Supalo, Cary – Physics Teacher, 2019
The Americans with Disabilities Act (ADA) mandates that U.S. institutions of higher education provide "reasonable accommodations" to students with disabilities to ensure equal educational opportunities. However, despite the key role of physics as a gateway to science, technology, engineering and mathematics (STEM) studies, only limited…
Descriptors: Science Instruction, Physics, Blindness, Majors (Students)
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Stephens, Jeff; Bostjancic, Melissa; Koskulitz, Tara – Physics Teacher, 2019
The use of video analysis for the study of motion and forces is well established in the worlds of physics and biomechanics. The issue of parallax error, sometimes referred to as perspective error or scaling error, when videotaping a moving object is known, and the experimenter is often counseled to be "far away." However, "far…
Descriptors: Physics, Motion, Scientific Principles, Scientific Concepts
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Bickel, Klaus; Denschlag, Robert – Physics Teacher, 2019
This work is inspired by a recent article in a German newspaper about the question of whether a 360 degree turn on an ordinary swing, that is, a seat suspended by chains, is possible. Although the author correctly negates the question, his remarks about the trajectory of the rocking person remain imprecise. Thus, we direct our attention to cases…
Descriptors: Science Instruction, Physics, Motion, Scientific Concepts
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Binder, P.-M.; Gorospe, Beverly A.; Singer, Solomon – Physics Teacher, 2019
The location of the center of mass of a beam can be calculated using the values of the reaction forces at its ends. The success of an apparently erroneous solution leads the authors to seek and find an explanation for why this solution works. We illustrate the procedure with an asymmetric beam.
Descriptors: Physics, Science Instruction, Scientific Concepts, Light
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Park, Jaeseong; Choi, Hyukjoon; Kim, Jung Bog – Physics Teacher, 2019
The Roberval balance mentioned by E. Scott Barr presents a phenomenon against intuition that appears to violate the principle of torque equilibrium. Roberval called his balance a "static enigma." This apparent paradox went unexplained for well over a century until L. Poinsot in 1804 explained that the thrusts created in the parallelogram…
Descriptors: Physics, Energy, Science Instruction
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Lincoln, James; Davidhazy, Andrew – Physics Teacher, 2019
Many of us teach that insects can see "invisible" ultraviolet light, but what demonstrations do we perform to illustrate this? Often UV can be used to cause fluorescence or phosphorescence, which can make its existence more visible. But, is it possible to create photographs or videos that convincingly illustrate the vision of insects? In…
Descriptors: Physics, Science Instruction, Light, Photography
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Allen, Thomas; Chally, Alex; Moser, Bradley; Widenhorn, Ralf – Physics Teacher, 2019
The labs presented here build on a simple speed of sound activity and models medical ultrasound imaging by demonstrating how multiple reflections propagate in a closed system. A short sound pulse is emitted into a pipe that is closed at one end and contains one or more partially reflecting surfaces within the pipe. The variety of reflections and…
Descriptors: Physics, Science Instruction, Acoustics, Diagnostic Tests
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Chiang, Chun-Ming; Ma, Shih-Hsin; Wu, Jyun-Yi; Hung, Yao-Chen – Physics Teacher, 2019
This paper mainly proposes a simple method to record scattered light rays via photography, presenting a clearer and brighter representation of the optical path. This technique is applied to the double-slit interference experiment and single-slit diffraction experiment typically conducted in general physics courses, and shows the intuitive results…
Descriptors: Photography, Light, Optics, Physics
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Uddin, Zaheer; Zaheer, Muhammad Hani – Physics Teacher, 2019
In this paper, we present a demonstration of Ohm's law on a spreadsheet. Students can perform an experiment of Ohm's law like they perform in laboratories. The only difference is that the apparatus is virtual. The students record readings of current through the circuit and potential difference across a resistor. A graph is drawn between I and V to…
Descriptors: Scientific Principles, Spreadsheets, Science Experiments, Laboratory Experiments
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Kohnle, Antje; Jackson, Alexander; Paetkau, Mark – Physics Teacher, 2019
Learning introductory quantum physics is challenging, in part due to the different paradigms in classical mechanics and quantum physics. Classical mechanics is deterministic in that the equations of motion and the initial conditions fully determine a particle's trajectory. Quantum physics is an inherently probabilistic theory in that only…
Descriptors: Probability, Quantum Mechanics, Physics, Computer Simulation
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LoPresto, Michael C. – Physics Teacher, 2019
A primary goal of general education introductory astronomy courses often is to provide students with examples of how science is actually done. Low to nonexistent mathematical prerequisites in some courses can make useful exercises difficult to find, and sometimes very difficult for students, especially if the exercises feature quantitative…
Descriptors: Astronomy, Science Instruction, Data Collection, Space Exploration
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Taniguchi, Darcy A. A.; Taniguchi, James; Ridgway, Sam; Schulz, Kathryn – Physics Teacher, 2019
The lesson presented here provides a multifaceted inquiry-based opportunity to develop a deep grasp of Archimedes' principle. It was originally developed for high school teachers as part of their training in the basic structure of the Next Generation Science Standards. There are numerous demonstrations illustrating Archimedes' principle, many of…
Descriptors: Science Instruction, Inquiry, Scientific Principles, High Schools
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Frensley, John – Physics Teacher, 2019
Traditional high school physics instruction often comes across as a mere extension of the mathematics classroom to many of our students. Solving numerical physics problems using structures such as the GUESS method (given, unknown, equation, substitute, solve) doesn't help students with conceptual understanding. With the advent of physics education…
Descriptors: High School Students, Secondary School Science, Physics, Science Process Skills
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