The purpose of this study was to determine and compare the reliability of 3 dimension reaction forces and impulses in walking with 3 different heel shoe conditions. These results suggest that changing the height of the heels affects mainly the reliability of the ground reaction force and impulse measures on the medial and lateral dimension and not…

Experimental physics is seen as an essential part of tertiary physics education. Students are supposed to develop practical skills and advance from closed "cookbook" experiments to open experiment and design experiment procedures independently. As a consequence tertiary practical physics courses increase in the level of challenge…

This paper is a qualitative and quantitative corpus-based study of how academic writers use the personal pronouns I and inclusive and exclusive we. Using a multidisciplinary corpus comprising of journal research articles (RAs) from the fields of Business and Management, Computing Science, Economics, and Physics, I present data extracts which…

Interpretation and construction of graphs are central to the study of physics and to performance in physics. In this paper, I explore the interpretation and construction processes called upon in questions with a graphical component, in Western Australian Physics Tertiary Entrance Examinations. In addition, I list errors made by students as…

This study aims at presenting a grid for analysing the way the language employed in Greek school science textbooks tends to project pedagogic messages. These messages are analysed for the different school science subjects (i.e., Physics, Chemistry, Biology) and educational levels (i.e., primary and lower secondary level). The analysis is made…

Braking to avoid a collision can be controlled by keeping the deceleration required to stop (i.e., ideal deceleration) in the "safe" region below maximum deceleration, but maximum deceleration is not optically specified and can vary as conditions change. When brake strength was manipulated between participants using a simulated braking task, the…

These series of lessons uses the process of student inquiry to teach the concepts of force and motion identified in the National Science Education Standards for grades 5-8. The lesson plan also uses technology as a teaching tool through the use of interactive Web sites. The lessons are built on the 5-E format and feature imbedded assessments.

We investigated the common difficulties that students have with concepts related to rotational and rolling motion covered in the introductory physics courses. We compared the performance of calculus- and algebra-based introductory physics students with physics juniors who had learned rotational and rolling motion concepts in an intermediate level…

The paper introduces a set of formative assessment tasks and rubrics that were developed for use in an introductory physics instruction to help students acquire and self-assess various scientific process abilities. We will describe the rubrics, tasks, and the student outcomes in courses where the tasks and rubrics were used. (Contains 49…

In their paper, Martinez, Solanto, and Jiminez compared a number of methodologies used to describe students' understandings of scientific conceptions. One of the issues raised by the authors was the lack of a theoretical platform based in the area of cognition upon which the data were analysed. This paper investigates students' understandings of…

We present a simple activity in which students measure the resolving power of their eyes. The approach can be used at various levels of sophistication with students having a wide variety of skills and scientific training. We discuss our experiences using this activity with a class of non-science majors as well as with a group of pre-engineering…

This article describes how to construct a laser level. This laser level can be made using a typical 4' (or shorter) bubble level and a small laser point. The laser unit is detachable, so the bubble level can also be used in the conventional way. However, the laser level works better than a simple bubble level. Making this inexpensive device is an…

Misconceptions among students studying physics have been widely reported in the research literature. Many teachers are not acquainted with this literature. Moreover, many of them claim that only weak students have misconceptions. This paper reports on an online activity focusing on misconceptions of students regarding Newton's 3rd Law, that is…

In this age of cell phones, digital television, and satellite radio, individuals easily forget that information and energy must undergo complex transformations to enable real-time wireless communication. This article describes a practical and proven design activity that enables secondary and post-secondary students to design and test a modulator…

This research study was designed to provide an introductory examination of how high school students' out-of-school science experiences, particularly those relevant to the physical sciences, relate to their learning of Newtonian mechanics. A factor analysis of the modified Science Experiences Survey (SES, Mason & Kahle, 1988) was performed,…