April 2021 TPT Cover


The Physics Teacher

Volume 59 Issue 4

April 2021

A Foucault Pendulum Pilgrimage in Paris

This month's cover invites you to look for your reflection in this modern replica of the Foucault pendulum bob suspended from the dome of the Panthéon. For more information see Don Olson’s article “A Foucault Pendulum Pilgrimage in Paris”.

Authors should submit their article and cover letter at this website: http://tpt.peerx-press.org/.   



And the Survey Says..., Astronotes, Figuring Physics, iPhysicsLabs, Little Gems, Physics Challenge for Teachers and Students, Fermi Questions, Talkin' Physics, Technology In The Classroom, Tricks of the Trade, Visual Physics,  and Websights.


An Appreciation of Paul Hewitt! by Chris Chiaverina. DOI: 10.1119/10.0004139

Correction: Isabel Bishop, Siyu Xian, and Steve Feller, “Robert A. Millikan and the Oil Drop Experiment,” . DOI: 10.1119/10.0004140


Stop- Motion Animation to Model the Analemma by Leslie Atkins Elliott, Amanda Hunter, Carl Krutz, ShaKayla Moran and Elliot Sherrow. DOI: 10.1119/10.0004142

A Foucault Pendulum Pilgrimage in Paris by Don Olson. DOI: 10.1119/10.0004143

Apparatus Named After Our Academic Ancestors – V by Thomas B. Greenslade Jr. DOI: 10.1119/10.0004144

Classical Doppler Effect in Some Accelerated Systems by C. H. Wörner and Roberto Rojas. DOI: 10.1119/10.0004145

Rotation of Spherical Magnet Falling Through a Slit Copper Pipe by F. Behroozi. DOI: 10.1119/10.0004146

A Race Between Rolling and Sliding Up and Down an Incline by Carl E. Mungan. DOI: 10.1119/10.0004147

A Rotational Dynamics Laboratory Upgrade by J. Bierman, D. Buckley, J. Kemper and A. Greer. DOI: 10.1119/10.0004148

When Negative Is Not “Less than Zero”: Electric Charge as a Signed Quantity by Alexis Olsho, Suzanne White Brahmia, Trevor Smith and Andrew Boudreaux. DOI:10.1119/10.0004149

The Original Bell Theorem without Calculus by Jed Brody. DOI: 10.1119/10.0004150

Bringing the Welcome Home: One Section’s Efforts at Incorporating AAPT’s Diversity and Inclusion Practices by Bree Barnett Dreyfuss and David Marasco. DOI: 10.1119/10.0004151

Standing Vertical Jumps – Sports Physics with a Smartphone by L. Darmendrail and A. Müller. DOI: 10.1119/10.0004152

Shear Modulus Determination Using the Smartphone in a Torsion Pendulum by Andreas Kaps, Tobias Splith and Frank Stallmach. DOI: 10.1119/10.0004154

Diffraction Experiments with a Smart Cart by Asif Shakur and Steven Binz. DOI: 10.1119/10.0004155

The Pedagogical Power of Wonder Questions by Christine Lindstrøm. DOI: 10.1119/10.0004156

Converting Physlets and Other Java Programs to JavaScript by Wolfgang Christian, Mario Belloni, Robert M. Hanson, Bruce Mason and Lyle Barbato. DOI: T10.1119/10.0004157

An Analysis of Shadows Made from Sunlight Reflected by a Curved Surface by Swapnil Tripathi. DOI: 10.1119/10.0004158

Understanding a Paradox in Special Relativity by Walter Bruce Richards. DOI: 10.1119/10.0004159

Color- Coded Algebra by Bradley K. McCoy. DOI: 10.1119/10.0004160

Motivating Premedical Students to Get Interested in Physics by Vadim Shlyonsky. DOI: 10.1119/10.0004161

Observing Solar Limb Darkening in the Classroom by S.S.R. Inbanathan, K. Moorthy and Ashok Kumar S. DOI: /10.1119/10.0004162

Two Differential Mechanisms by Thomas B. Greenslade Jr. DOI: 10.1119/10.0004163


Race and Physics Teaching Collection Resource
Race and Physics Teaching Continued May 2020-January 2021

DNA Science TPT Element

DNA Science Lesson & Digi-Kit

Inspired by an article from The Physics Teacher, this multidisciplinary lesson and digital resource collection is based on How Rosalind Franklin Discovered the Helical Structure of DNA: Experiments in Diffraction (Braun, Tierney, & Schmitzer, 2011). Click the image to access this resource.