Do It Yourself: Air Drag Force Experiment Using Paper and Scraper Sheet

JIPF (Jurnal Ilmu Pendidikan Fisika) Pub Date : 2021-09-04 DOI:10.26737/JIPF.V6I3.1996

Rizki Zakwandi, A. Ariswan, Syifa Nurfalah, Tiana Azmi Alawiyah, Widiya Amanda, E. Mahen, A. Y. Nuryantini

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引用次数: 1

Abstract

Free fall motion in air medium is only influenced by gravitation acceleration. However, there are several variables that caused the observations to be different with the concept. Variables, such as air drag and terminal velocity, are often teachers not presented in detail, causing misconceptions. This study aims to develop a simple experiment on free fall motion by identifying air drag and terminal velocity. The data in this study is the video of free fall motion of paper and scraper analyzed using Tracker video analyze. From the video analyzed, information is obtained in the form of time (t), track (l, θ), and velocity (v) of the object. This study shows that the air drag force increase unto the terminal velocity. The calculation of the drag coefficient giving the number of the paper 2,16 and the scraper 2,10. According to data analyzed, the air drag force is affected by the mass (m), area (A), and the air drag force (FD) with the linear correlation until it reaches the terminal velocity. The result of this study may use as references of free fall motion experiment with other objects and analyze.

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自己动手:用纸和刮板做空气阻力实验

空气介质中的自由落体运动只受重力加速度的影响。然而，有几个变量导致观察结果与概念不同。如空气阻力和终端速度等变量，教师往往没有详细说明，造成误解。本研究旨在建立一个简单的自由落体运动实验，通过确定空气阻力和终端速度。本研究的数据是使用Tracker视频分析软件对纸和刮刀自由落体运动的视频进行分析。从分析的视频中，可以得到物体的时间(t)、轨迹(l， θ)和速度(v)的信息。研究表明，空气阻力增大到末速度。给出纸的数量2,16和刮板的数量2,10的阻力系数的计算。根据数据分析，空气阻力受质量(m)、面积(A)和空气阻力(FD)的影响，直至达到终端速度，三者呈线性相关关系。研究结果可作为其它物体自由落体运动实验的参考和分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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JIPF (Jurnal Ilmu Pendidikan Fisika)

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