Inexpensive Physical Pendulum with Arduino

Luković, Milentije; Lukovic, Vanja; Božić, Miroslav; Vujičić, Vojislav

doi:10.1119/10.0006155

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…acceleration, we do not move Lato-Lato so that it forms a full circle, but we use one pendulum to strike another. First the two pendulums must be aligned (1) then the first pendulum deviated at a certain angle, while the second pendulum remained at its lowest point (2). The moment the first pendulum is let go, it swings and strikes the second pendulum.…”

Section: Resultsmentioning

confidence: 99%

“…Earth's gravitational acceleration can be determined through various simple experiments in the laboratory. The most common method is to use a simple pendulum and physical pendulum [1][2][3][3][4][5][6][7][8][9][10][11][12]. If the period (T) and length of the pendulum string (L) of a simple pendulum are known, the acceleration due to gravity can be calculated using the equation T = 2π (L/g) 1/2 [7].…”

Section: Introductionmentioning

confidence: 99%

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Determine g using Lato Lato

Wibowo¹

2023

Phys. Educ.

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We demonstrated the measurement of the Earth’s gravitational acceleration ( g ) by using Lato Lato, a popular children’s toy in Indonesia right now. We compared the obtained results with the value of the measured gravitational acceleration using a simple pendulum. The smart phone was used to record the videos of the experiment, and then we analysed the video to obtain the deviation angle (ϑ) and duration of the pendulum movement (t) of Lato Lato to determine g . The value obtained from the measurement using Lato Lato is ( 9.776 ± 0.007 ) m s−2, while 9.774 ± 0.048 m s−2 is obtained by using a simple pendulum. It shows that the accuracy levels of the two techniques are comparable. Therefore, Lato Lato can be used as a simple and low-cost experimental tool for measuring the acceleration due to gravity. It is supposed to become an addition to methods that are commonly used, such as a simple pendulum and a physical pendulum.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Determine g using Lato Lato

Wibowo¹

2023

Phys. Educ.

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“…In physics curriculum, simple harmonic, damped and driven oscillations are fundamental topics. Several studies have investigated a damped harmonic motion from different systems such as a solid mass-spring system [1], mass-spring oscillations in liquids [2], a simple pendulum [3], a damped pendulum [4,5], and a physical pendulum [6]. These studies employed different methods such as high-speed video analysis using Tracker [2], commercial data acquisition equipment [4,5] and Arduino platform board and sensors [1,3,5].…”

Section: Introductionmentioning

confidence: 99%

Application of ultrasonic sensor and Arduino in analysing motion of damped pendulum

Methet

Chattrapiban

Wattanakasiwich

2023

J. Phys.: Conf. Ser.

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An easy-to-setup experiment designed to measure the period and air drag coefficients of a damped pendulum is reported. The setup is made up of a solid metal ball and cylindrical shells of various sizes to create air drag. An ultrasonic position sensor (HC-SR04) and an Arduino Uno board were located beneath the pendulum’s lowest position. The pendulum was released from a fixed height at a small initial angle. The periods of the oscillations involving different cylindrical shells were obtained from the time series plots of the pendulum’s position when the pendulum moves back and forth above the sensor. The drag coefficients were measured from five different values of string length. The coefficient was proportional to the size of the cylindrical shells and in agreement with the drag equation for a small Reynolds number.

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Teaching large angle pendulum via Arduino based STEM education material

Erol

Oğur

2023

Phys. Educ.

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This study reports an Arduino based STEM education material that resolves large angle pendulum, alternatively anharmonic oscillator, both experimentally and theoretically, particularly focuses on the time dependence of the instantaneous displacement angles. Instantaneous time dependence of the angles is experimentally measured by using Arduino Nano microprocessor connected to a gyro sensor and a bluetooth transmitter/receiver structured as a STEM education material. Theoretical resolution of the large angle pendulum is also accomplished by considering the approximate solution taking into account the relevant frictional effects. The theoretical and experimental resolutions are managed for the initial angles of θ 0 = 1.40 rad and θ 0 = 2.61 rad , specifically focusing on the angular frequencies, frictional effects and anharmonicity of the motion. The relative errors concerning the angular frequency are found to be % 15.2 and % 6.5 for θ 0 = 2.61 rad and θ 0 = 1.40 rad , respectively. The exponential decrease due to the frictional effects are in perfect agreement with each other and providing a friction coefficient of γ = 0.015 kg m s − 1 for both experimental and theoretical results. The anharmonicity of the pendulum is also illustrated by comparing the experimental plots and relevant theoretical plots for the small angle approximations. This work offers a prototype teaching material which can create an education environment where students can feel dynamic and encompass the acquisitions of Science Technology Engineering and Mathematics.

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Inexpensive Physical Pendulum with Arduino

Cited by 3 publications

References 10 publications

Determine g using Lato Lato

Determine g using Lato Lato

Application of ultrasonic sensor and Arduino in analysing motion of damped pendulum

Teaching large angle pendulum via Arduino based STEM education material

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