This study has proposed a simple method to show the convective heat transfer. The object in this study is an air conditioner (AC) as a simple case of convection. In addition, AC is also easy to find in the class because most classrooms in Indonesia installed AC. Usually, a visualization needs special software (i.e. MatLab or others) and good…

This article explains how the project-based lab (PJB-Lab) trains critical thinking skills, creative thinking skills, communication skills and collaboration skills (4C Skills) and produces two project products from the application of the fluid concept, namely the application of Archimedes' law on submarine projects and the application of…

The COVID-19 pandemic has forced educational institutions to adjust their learning process to distance education or online learning. This paper explains how to teach optics during the COVID-19 pandemic by implementing project-based learning that can be supervised online. Students are instructed to design, characterize, and optimize droplet lenses…

In the high school context, many students only solve photoelectric effect phenomena based on the equation for maximum kinetic energy and its relationship to work functions. While the story behind this phenomenon constitutes an exciting educational experience if conveyed in an attractive visual manner, many physics teachers are concerned that…

There is growing interest in the introduction of Einsteinian concepts of space, time, light and gravity across the entire school curriculum. We have developed an educational programme named 'Einstein-First', which focuses on teaching Einsteinian concepts by using simple models and analogies. To test the effectiveness of these models and analogies…

A low-cost solar simulator using a LCD projector as a light source has been developed and tested successfully. The prepared simulator has an illumination spectral at the visible light region and is controllable using a computer. The prepared simulator with controllable spectral filter was used to utilize the current-voltage (I-V) measurement for…

The acoustics of a vibrating string is frequently used as a simple example of how physics can be applied in the field of art. In this paper we describe a simple experiment and analysis using a clipped string. This experiment can generate scientific curiosity among students because the sound generated by the string seem surprising to our senses.…

Some pre-service teaching activities can contribute much to the learning of pedagogical content knowledge (PCK) and subsequent teaching as these activities are "generating" PCK within the pre-service teacher's own classroom. Three examples are described: preparing exhibitions of science experiments, assessing preconceptions, and teaching…