The family of paths of ideal projectiles shot from a point with a common value of speed and at different angles to the horizontal has several interesting properties associated with it. For example, Chapou et al. have shown that an ellipse passes through the apexes of these parabolic paths. This observation encouraged us to further explore this…

Students' challenges in learning mechanics are well documented from test situations, and group discussions are considered a fruitful way to meet these challenges. In this paper, we present a study from an authentic teaching setting where upper secondary students in groups solve the task of calculating the acceleration of an elevator by means of a…

Self-explanation, a learning strategy where students explain to themselves the steps taken in a worked example, is an effective learning strategy in early cognitive skill acquisition. However, many physics students produce self-explanations of low quality. There is also a lack of guidelines for what students should seek to explain when studying…

We use a tensile testing machine to create stress-strain plots and determine Young's modulus for some ductile and plastic materials. Supplementary videos are also provided.

We describe a simple, intuitively appealing interpretation of the observed ellipsoidal shape of the rotating Earth: it is that surface everywhere perpendicular to the net force upon it.

Exploring students' physics conceptions, science engagement and misconceptions in physics together with their association to certain variables (gender, educational background, and program of study) are essential in improving physics teaching and learning. However, few studies have been conducted to explore these three measures and almost none…

This work analyzes whether there is a cognitive bias between the ideal perception of the skills and the real performance in an introductory physics class, and additionally, whether predictions of students' performance are related to various motivational variables. We examined through a validated survey and network analysis the relationship between…

The present research is an examination of Augmented Reality (AR) applications in Science Education using the Multi-complementary Approach (McA). This incorporates multiple analyses: i) Pre-complementary: meta-analysis and meta-thematic analysis, ii) Post-complementary: an experimental design with a pre- and post-test control group and iii)…

This study used structural topic models (STMs) to analyze physics pre-service teachers' conceptual understanding of scientific literacy. Participants included 126 physics pre-service teachers studying at Shandong Normal University in China. First, we used an open-ended questionnaire to collect the data. Second, STM was used to classify the data,…

The aim of this cross-sectional study was to compare acceleration outputs of the parkour-style "tic tac" action with those of the drop jump and the lay-up shot in youth basketball players. A total of 25 participants (17 boys, 13.80 ± 1.30 years of age; and eight girls, 15.00 ± 0.80 years of age) completed three trials of each action…

On 24 June 1994 at Fairchild Air Force Base, during practice for an air show, a low-flying B-52H aircraft banked its wings vertically and crashed. Emphasizing the activity of modeling drag and gravity, these notes examine the possibility of recovery with several models. First, with algebra, historical data lead to a model where in a free fall near…

The physics' subject aims to provide the student with a broad understanding of the physical phenomena that occur around them every day and introduce them to the scientific search. The use of experiments in the teaching of the subject contributes to the understanding of these phenomena, the development of skills and critical thinking and has many…

For Massive Open Online Courses to have trustworthy credentials, assessments in these courses must be valid, reliable, and fair. Item Response Theory provides a robust approach to evaluating these properties. However, for this theory to be applicable, certain properties of the assessment items should be met, among them that item difficulties are…

Social semiotic discussions about the role played by representations in effective teaching and learning in areas such as physics have led to theoretical proposals that have a strong common thread: in order to acquire an appropriate understanding of a particular object of learning, access to the disciplinary relevance aspects in the representations…

Reasoning with mathematics plays an important role in university students' learning throughout their courses in the scientific disciplines, such as physics. In addition to understanding mathematical concepts and procedures, physics students often must mathematize physical constructs in terms of their associated mathematical structures and…