Angular and linear acceleration in a rigid rolling body: students  misconceptions

Abstract

The purpose of this paper is to highlight students' misconceptions of the kinematics of rolling movement and to show mechanisms that can help the student to overcome them. In particular, it focuses on the relationship between the angular and linear acceleration of a rigid body that moves without slipping. Frequently, physics books show particular examples of rolling movement instead of treating the underlying physics. Consequently, students can develop misunderstandings that lead to errors when solving more general cases. In this paper, I suggest how the physics teacher can deal with these problems. First, I discuss how to best teach the kinematics of the plane movement in a rigid body. Second, I propose several examples that can point out the misconceptions to the students and help them to restructure their knowledge.

Finding the location of the instantaneous center of rotation using a particle image velocimetry algorithm

“…The first three examples shown are rolling cylinder problems, which are difficult to solve for students according to recent research. [17][18][19] Equation (1) constitutes a basic relation between two velocities of random points A and B on a body, and is frequently applied to solve general introductory textbooks problems in plane kinematics. Its practical usefulness can be demonstrated with "real life" problems such as a wheel rolling with or without slipping, a ladder sliding down a wall and the well-known piston-crankshaft movement.…”

Analisis Pembelajaran Fisika Materi Dinamika Rotasi: Studi Literatur Publikasi Ilmiah

“…Dinamika rotasi merupakan materi yang tergolong kompleks. Hal ini dikarenakan materi tersebut tidak hanya mengkaji konsep gerak secara translasi tetapi juga secara rotasi (Lopez, 2013;Phommarach, 2012). Beberapa penelitian telah banyak dilakukan terkait strategi pembelajaran dinamika rotasi sebagai upaya untuk meningkatkan pemahaman konsep.…”

About the Teaching of Plane Motion of Rigid Bodies

“…Consequently, the equations related to the RBP motion can involve up to three coordinates, two for the position of the center of mass (cm) and, an additional one, for the angular position of the body. Given the complexity of the RBP motion, several theoretical aspects related to the teaching of it have been treated in previous papers [1][2][3][4][5][6]. The learning difficulties and typical misconceptions of the students, associated to the RBP motion, have been reported previously by several authors [1,3,[7][8][9][10][11][12][13][14][15][16].…”