Abstract
Friction is a resisting force that acts as along the tangent to two surfaces in contact when one body slides over or attempts to slide across another. Friction plays a major role in our daily life. There are different types of friction: static, kinetic, deformation, rolling and the like. But the aim of this project is not to study the type of friction, the project focus on comparative study of frictional force between smooth and rough surfaces and to identify the problems that cause the students’ experimental value variation with in the same position of theoretical condition that are discussed in the classroom. For this study, the data were collected by the laboratory experimental values that were recorded by the students in mechanics of frictional forces at W.S.U. This collected data were analyzed in order to compare the experimental value of the smooth surface with the value of the rough surfaces given in the secondary data. Finally, the data is presented to show the causes that hinder the students to find to meet the coherence between the theoretical knowledge and the experimental value Keywords : frictional force, rough, smooth DOI : 10.7176/APTA/79-02 Publication date :September 30 th 2019
Highlights
Comparative studies of a subject under discussion given an insight between the things compared for further insight on the subject matter
Comparing the experimental value on smooth and rough surfaces in mechanics with theoretical value on frictional force in physics gives as the measure of differences or similarities between the two values
Statement of the problem This study deals with a comparison of the experimental values of smooth and rough surfaces of frictional force in mechanics laboratory
Summary
Comparative studies of a subject under discussion given an insight between the things compared for further insight on the subject matter. 2. Statement of the problem This study deals with a comparison of the experimental values of smooth and rough surfaces of frictional force in mechanics laboratory. Statement of the problem This study deals with a comparison of the experimental values of smooth and rough surfaces of frictional force in mechanics laboratory It attempts to identify the knowledge gap that causes the students to relate effectively in the laboratory as expected by the university. Laboratory teachers motivated to support their students to reduce the problems of the experimental value variations and knowledge gap of the students in the mechanics laboratory of physics department, and the student’s egger to exercise and practice their experiment with confidence. Limitations of the study The factors limits this study are knowledge gap on the research writing and lack of references that gives information about the study
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