The advantages of deriving the coefficient of kinematic friction from measurements of the damping of oscillatory motion have recently been described. The measurement of the acceleration rather than displacement has the advantage that, as well as the linear amplitude decay, the acceleration discontinuities due to the friction reversal can be…

This article highlights the potential of experimental and avant-garde cinema in film educational contexts. In the first part, Stefanie Schlüter evaluates her practical experience in working with 10- to 11-year-old schoolchildren. Based on reflections by Peter Kubelka, Stan Brakhage and others, she emphasizes the act of engaging with film material…

As Chinese shows both satellite- and verb-framed properties (Slobin, 2004; Talmy, 2012, 2016), it provides a unique lens through which to observe the extent of first-language (L1) typological influence in second language (L2) acquisition of motion expressions. This study has dual purposes. First, it extends Wu's (2016) investigation on motion…

With many universities now admitting students into their science programs with little or no prior knowledge of the relevant field, significant challenges arise in the way these fields are introduced. Challenges mount with various preconceived ideas regarding the levels of difficulty, thus necessitating introductory concepts be presented in…

Most springs do not simply obey Hooke's law because they are constructed to have an initial tension, which must be overcome before normal elongation occurs. This property, well known to engineers, is universally neglected in elementary physics courses. In particular, the standard simple harmonic motion experiment omits any discussion of this…

The conservation law of energy and momentum can be examined and demonstrated by a well-known collision experiment. In this experiment, several identical elastic balls are suspended from a horizontal frame. When the ball at one end is pulled aside and released, thus allowing it to swing like a pendulum, it hits the next ball. The outcome is…

Purpose: The aim of this study was to examine the effect of 3- vs. 2-minute inter maximal-repetition rest period (IMRRP) on maintaining jerk technical efficiency and power production during two successive maximal repetitions of Clean & Jerk (C&J). Methods: In a randomized, within subject, repeated measures design, nine elite-weightlifters…

This paper describes a simple and effective trick with a ball on a flat surface. The trick does not require any skills, is surprising and can provide an attention-grabbing, fun introduction for high school students into the topic of pure rolling motion versus rolling with slipping.

In recent years, smartphone sensors have been frequently used in educational demonstrations to improve students' understanding of certain physical kinematic topics. In particular, the sensors on modern smartphones enable students to use their phones as physics mini-laboratories, and they have been used to analyze objects' speeds and accelerations…

The conical pendulum is a topic theoretically approached in physics literature, but with little experimental activity developed due to the difficulty of reproducing the conical motion in ideal experimental conditions. This work consisted of studying the motion of a rigid conical pendulum using video analysis. The experimental results were used as…

The aim of this study was to investigate, using an eye-tracking tool, the processes behind the exploration of written texts performed by deaf people with different language skills and different educational backgrounds. Our sample comprised 36 deaf participants (12 of whom use Italian sign language most of the time, 12 who use Italian only, and 12…

Observing children tossing a ball in a game of catch or pumping their legs to move a swing, it is obvious that they have already experienced and learned to control the basics of pushes and pulls. Through everyday experiences as simple as rolling a ball across the floor, to more complex activities like team sports, children are building a…

The Motor and Vocal Imitation Assessment (MVIA) was developed to evaluate a proposed hierarchy of imitation skills that could be used to formulate an experimentally-validated instructional guide for intervention. Imitation performance was assessed via the MVIA in 30 typically developing (TD) children and 30 children with Autism Spectrum Disorder…

New learning strategies try to extend the use of common devices among students in physics lab practices. In particular, there is a recent trend to explore the possibilities of using smartphone sensors to describe physics phenomena. On the other hand, the study of the moment of inertia by the use of the torsion pendulum is a typical example in the…

With the advent of new data collection techniques, there has been a growing interest in studying co-located groups of students using Multimodal Learning Analytics to automatically identify collaborative learning states. In this paper, we analyze a multimodal dataset (N=84) made of eye-tracking, physiological and motion sensing data. We leverage…