Abstract
Nowadays, the rapid developments in science and technology have an impact on education as well as on all gear units. The integration of technology into the education process offers effective opportunities, particularly in the fields of STEM (Science, Technology, Engineering and Mathematics). In this context, Arduino platform has started to be used as a low cost, easy to use microcontroller in physics teaching. In this study, an Arduino-based physics experiment that can be used in physics laboratories was designed. We have used Arduino platform to study temperature dependence of electrical resistance and to define the temperature coefficient for a conductor. Experimental data were collected using the Arduino ohmmeter and a temperature sensor. The resistance-temperature curve obtained is in the expected character and the temperature coefficient is in the expected value. With this experiment, the student can easily observe the temperature change of the conductor's resistance and calculate the temperature coefficient of the resistance. The Arduino-based apparatus is presented as a simple and low cost alternative to physics laboratories.
Highlights
Laboratory activities in the teaching of physics are important as students are involved in the process of learning and exploring with firsthand experience
For the reference resistance value (R0) of the copper wire, the resistance was measured with the Arduino ohmmeter at 20 °C using the experimental setup and it was measured as R0 = 7.69 Ω
The Arduino platform has been widely used recently in physics education to perform a number of different measurements with low cost
Summary
Laboratory activities in the teaching of physics are important as students are involved in the process of learning and exploring with firsthand experience. Microprocessors, mobile data collection tools, sensors and analogue instruments have been integrated into a single system, providing significant convenience in data collection, data processing and visualization processes (Chen et al, 2012; Russell, Lucas & McRobbie 2004) In this context, Arduino Board, based on a microprocessor, has been preferred in physics experiments with its low cost, flexible and applicable structure and quick data collection advantages (Atkin, 2016; Pereira, 2016; Tunyagi, Kandrai, Fülop, Kapusi &Simon, 2018). Students can comprehend and apply these factors As another effect on the resistance of the conductor, the temperature effect in the physics curricula cannot be studied experimentally enough. The Model of Temperature Dependent Electrical Resistivity of Metals When a potential difference (V) is applied between the ends of a metallic conductor, an electric field is generated in relation to the potential difference.
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