In this work, we made a simple electronic tool called a 'magnetic polarity detector' which can determine the magnetic poles of permanent magnets or electromagnets. We used it in some student experiments in the physics laboratory. For example, determining the magnetic poles of permanent magnets and a current-carrying coils or electromagnets.…

Several new devices that demonstrate a variety of known phenomena in fluid dynamics are presented. These add on to a recent collection of demonstrations and follow the same design features as documented earlier (self-contained, easy to use, low cost). Descriptions are provided to enable replication by others, using readily available materials. The…

The purpose of this study is to consider Superman's acts against impulse-momentum and conservation of momentum principles. Superheroes as fantasy fiction characters attract the attention of not only children and teenagers but also adults. Superheroes can be useful in explaining a phenomenon, as well as overcoming conceptual difficulties that may…

Metabolism and its regulation is one of the most complex and difficult topics for students learning biochemistry. A problem-/case-based learning (PBL) approach can be useful to help biochemistry students to fulfill the goal of acquiring an integrated view of metabolism and its regulation. The present article describes our experience enrolling…

In this paper I explain how I usually introduce the Schrödinger equation during the quantum mechanics course. My preferred method is the chronological one. Since the Schrödinger equation belongs to a special case of wave equations I start the course with introducing the wave equation. The Schrödinger equation is derived with the help of the two…

Academic achievement in elementary science achievement scores throughout Title One schools in metro-Atlanta could be identified through analphabetism and improper vocabulary instruction to accommodate students' learning styles. Teaching words explicitly entails extensive time and patience when exposing new science vocabulary. However, teaching…

Primary school students have trouble grasping concepts related to plants. Their misconceptions are also notable. On the other hand, mobile devices (such as tablets) and their apps, are considered effective educational tools. For examining whether the same holds true in relation to plants, we carried out a project, having as a target-group 263…

This paper represents the second contribution from an action research study on a bachelor-level quantum chemistry and spectroscopy course. In the proposed instructional model, active learning principles are extended outside lectures to form a student-centred course structure. The new model resulted in superior learning outcomes compared to a class…

[NiBr[subscript 2](PPh[subscript 3])[subscript 2]] and [NiBr[subscript 2](dppe)] are prepared from nickel bromide hydrate and phosphine. These brightly colored coordination compounds are then converted into the related organometallic compounds "trans"-[NiBr(Mes)(PPh[subscript 3])[subscript 2]] and [NiBr(Mes)(dppe)] (Mes =…

The PhiTOP® (or FTOP®) is a physics toy designed not only to act as a spinning top but also to appeal to the eye and to the scientifically curious mind.1 It is currently made in two versions, one from solid aluminum and the other solid brass. Each top is highly polished, and is elliptical in one cross section and circular in another. Its name…

Oscillatory motion with damping proportional to the velocity is part of all upper-class physics courses and some introductory courses; however, the emphasis is primarily on the free amplitude decay. Microelectromechanical (MEMs) accelerometers allow the acceleration to be directly measured and the velocity and displacement to be derived from it.…

Electromagnetic induction, represented by either Faraday's law or the Lorentz force law, produces many paradoxes requiring careful examination and application of these laws. The paradoxical example of induction, presented herein, arose in a class and is resolved within the framework of special relativity.

In this paper we present a method to construct a simple, sturdy and inexpensive photogate to be used in elementary physics laboratories. The great advantage of the proposed design is that it has no transmitter-receiver alignment related problem at all and the receiver is nicely encapsulated which prevents any spurious light triggering the…

During the COVID-19 pandemic, anatomy educators have demonstrated their ability to respond to face-to-face (F2F) teaching restrictions and offer emergency remote teaching and learning (ERTL) approach. Another educational model that was intensified during COVID-19 was blended learning (BL) which is a combination of F2F and online settings. Studies…

This study based on cognitive and social semiotic theories investigates whether the influence of specific features of instructional representation from adolescent textbook images could last until adulthood in certain cultures. Two cultural groups, Indonesian (n = 61) and Taiwanese (n = 60) college students, were recruited from a public Taiwanese…