The orthogonality of eigenfunctions in problems of unsteady heat conduction in an infinite slab with symmetric and nonsymmetric convective boundary conditions are demonstrated by performing actual integration of the products of the derived forms of eigenfunctions and by implementing the corresponding eigenvalue conditions. The analysis also…

Within physics education research (PER), resource theory has proven to be a useful framework for investigating knowledge and learning and informing instructional design. To analyze learning over longer timescales and across cases, PER scholars must first identify and describe the resources activated within and across physics contexts and domains.…

There is an ongoing challenge with STEM education: making physics, math, and science, in general, interesting, understandable, and retentive for college science and non-science majors, K-12 students, and the public. If not imparting detailed knowledge, at least one would like to introduce important concepts that will be remembered, appreciated,…

Many proofs of the arithmetic mean harmonic mean inequality have been proposed based on the rich connections between mathematics and physics. Sometimes the Arithmetic Mean Harmonic Mean inequality is proved by using electric networks. In this note, we use a simple set of two springs, instead of four springs which would be the equivalent set to…

This research aims to design immersive virtual reality with cognitive conflict to support practical learning of quantum physics. This type of research is design research through the stages of needs analysis, product design, validity test, and practicality test. The needs analysis used questionnaire sheets distributed with Google Forms and obtained…

Purpose: This research aimed to: (1) measure out the validity level of the developed Student Worksheets, (2) explain the students' responses and learning motivation in using Higher Order Thinking Skills (HOTS)-based worksheets, and (3) find the effect of the HOTS-based worksheet on learning outcomes. Methodology: The study employed the Research…

The first of the two postulates of relativity states that the laws of physics are the same in all inertial reference frames. Often it is assumed that the postulates are mainly concerned with objects moving at a significant fraction of the speed of light. However, the postulates are applicable at all speeds from a snail to a photon. To practically…

A simple in-class demonstration of integral Calculus for first-time students is described for straightforward whole number area magnitudes, for ease of understanding. Following the Second Fundamental Theorem of the Calculus, macroscopic differences in ordinal values of several integrals, [delta]"F"(x), are compared to the regions of area…

Recent years have seen a rise in interest in how education can foster critical thinking and discourage epistemically unwarranted beliefs. Considering this, this paper seeks to explore whether master's physics students are more critical and skeptical in the philosophical tradition of 'Scientific skepticism', than 1st year students. This is done by…

Purpose: To assess changes in criterion validity when modifying cut-points for use in different epoch lengths. Method: Simulated free-living data came from 42 adolescents (2-hr each) and 29 adults (6-hr each) wearing a hip-worn accelerometer and portable indirect calorimeter (Cosmed K4b[superscript 2]). K4b[superscript 2] data were classified as…

Clear and rigorous quantum reasoning is needed to explain quantum physical phenomena. As pillars of true quantum physical explanations, we suggest specific quantum reasoning derived from quantum physical key ideas. An experiment is suggested to support such a quantum reasoning, in which a quantized radiation field interacts with an optical beam…

Recruiting and retaining excellent teachers remains a pressing policy issue in education systems worldwide. According to UNESCO estimates, 68.8 million teachers will need to be recruited globally to meet Sustainable Development Goal 4. However, simply recruiting more teachers will not be enough to meet this challenge: we need to recruit…

The aim of this study is to develop and apply a rubric to evaluate the solutions proposed for questions about electromagnetic induction belonging to university second year pre-service teachers. In this study which has pretest-posttest quasi-experimental design with control group, teaching of the topic of electromagnetic induction was applied to…

Advanced clarification is an essential part of thinking skills relevant to students, which contains the ability evaluate, make decisions and make arguments. This ability is needed to prepare students to face the VUCA era. Clarity Learning Model (CLM) is a formulation of IBL, and the strengthening of reasoning abilities aims to improve advanced…

If a body is in equilibrium under the action of three non-parallel coplanar forces, the forces must be concurrent (Muncaster 1993 "A Level Physics" 4th edn (Cheltenham: Nelson Thornes) p 44, 45, 49; Goh 2018 "Phys. Teach." 56 384). It is easy to show that they are concurrent when the forces meet at a point in the body…