A simple pendulum-based measurement of<i>g</i>with a smartphone light sensor

Pili, Unofre; Violanda, Renante

doi:10.1088/1361-6552/aaab9c

Cited by 23 publications

(22 citation statements)

References 8 publications

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“…[2] To measure the period, the simplest way is to use the smartphone stopwatch (#10). Any sensors can be used: video analysis [16] (#11), accelerometer [2,16] (#12), gyroscope [16] (#13), magnetometer [17] (#14, either using a permanent magnet as the weight, or hanging the smartphone itself to the pendulum and measuring the Earth magnetic field), light sensor [18] (#15), proximity sensor (#16), audio record (#17*) using a Bluetooth speaker and looking for the audio modulation due to the distance to the source varying.…”

Section: Methods Using a Giant Pendulummentioning

confidence: 99%

61 ways to measure the height of a building: an introduction to experimental practices

Bouquet,

Organtini,

Kolli

et al. 2020

Preprint

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We imagined and tested 61 methods to measure the height of a building using a smartphone and everyday low-cost equipment. This open question forces students to explore various fields of physics and confront them with experimental questions such as the validity of a model, the notion of uncertainty, and precision. It allows them to compare different experiments, and can be shaped into various pedagogical scenarios, engaging students in a concrete task, outside of the lab, easily set up at almost zero cost.

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Section: Methods Using a Giant Pendulummentioning

confidence: 99%

61 ways to measure the height of a building: an introduction to experimental practices

Bouquet,

Organtini,

Kolli

et al. 2020

Preprint

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“…This is the acceleration g in equation (2). Many works [19][20][21] are dedicated to the measurement of free fall acceleration using smartphone sensors. From equations ( 2) and ( 4) we get the formula for determining the Earth's mass:…”

Section: Related Workmentioning

confidence: 99%

Measuring Earth’s mean density using BYOD technology

Zdeshchyts,

Zdeshchyts

2023

J. Phys.: Conf. Ser.

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BYOD (Bring your own devices) technologies are becoming more relevant in the educational process, when equipment that is “in the pocket” of a modern student is used in classes. BYOD technology becomes most effective if all students are provided with research equipments. But it is difficult to ensure such conditions in terms of distance learning during the war, the coronavirus pandemic, etc. In order to solve this problem, it is necessary to be able to develop laboratory installations that each student can make on his own. As an example of the implementation of this principle, the article considers a physical installation and a method of conducting laboratory work: “Measuring Earth’s mean density using BYOD technology”, which allows physics students, geodesists, surveyors to determine for themselves that the Earth has a heavy core. The purpose of this article is to show that a smartphone is a powerful measurement tool that, in combination with BYOD technology, increases student learning opportunities, namely: makes laboratory practice not too difficult; provides an opportunity to conduct experiments both in the laboratory and remotely. The main result of the work is proving the fact that the use of BYOD technology in combination with modern measuring tools – smartphones equipped with appropriate applications allows (to solve) the problem of distance learning of students. As it shown by the results of measuring the Earth’s mass and density using BYOD technology, the values are consistent with the known ones obtained with more difficult to use and expensive technique. Along with the values of mass and density, the student receives other characteristics of the Earth: the value and slope of the induction vector of its magnetic field. Exceeding of the Earth’s mean density, which is equal to 5676 kg/m3 according to the results of experiments; the density of the main rock-forming minerals in the Earth’s crust, which is in the range of 1900-3500 kg/m3, leads the student-researcher to think about the internal structure of the Earth.

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“…Computer and mobile technologies provide some alternative activities. These include computer simulations (Bayrak, 2008;Develaki, 2017;Habibi, Jumadi, & Mundilarto, 2020;Pratidhina, Pujianto, & Sumardi, 2019) simple experimental projects with readily available tools (including smartphone sensors) (Arribas, Escobar, & Suarez, 2015;Pili & Violanda, 2018), pre-recorded video demonstrations, live demonstrations (Kestin, Miller, Mccarty, Callaghan, & Deslauriers, 2020) and remote laboratories (Hoyer & Girwidz, 2018).…”

Section: E-learning In Physics and Its Challengesmentioning

confidence: 99%

Implementation of a Tracker-Assisted Modeling Activity in an Online Advanced Physics Experiment Course

Pratidhina

Rosana

Kuswanto

2021

Journal of Education and e-Learning Research

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Experiment or laboratory work is an essential part of physics and other science courses. However, due to the COVID-19 pandemic, face-to-face classes have had to be transformed into remote classes. Because laboratory access has become very limited, technology must be utilized to substitute for hands-on activity in laboratory-based courses. Additionally, maintaining students' motivation during remote classes is also challenging. In this paper, we report on the implementation of modeling activities using Tracker in our online Advanced Physics Experiment course. We examine the effectiveness of Tracker-assisted modeling activity in improving students' graph interpretation skills on the topic of Fraunhofer-Diffraction. The results show that 20 out of 21 participants demonstrated an increase in graph interpretation skills. The average normalized gain is 0.74, which can be seen as a high degree of improvement. Although the activity did not allow students to practice hands-on skills, this activity can encourage students to practice other science-related skills. Moreover, according to the survey, students feel more motivated to learn physics online after being exposed to the modeling activity.

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A simple pendulum-based measurement ofgwith a smartphone light sensor

Cited by 23 publications

References 8 publications

61 ways to measure the height of a building: an introduction to experimental practices

61 ways to measure the height of a building: an introduction to experimental practices

Measuring Earth’s mean density using BYOD technology

Implementation of a Tracker-Assisted Modeling Activity in an Online Advanced Physics Experiment Course

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