Gravitational Acceleration Measurement Using Simple Harmonious Motion at The Observatorium Ilmu Falak
Abstract
The gravity in various places varies, although not very significant. The measurement of gravitational acceleration in the city of Medan, especially in the Falak Science Observatory of the University Muhammadiyah of North Sumatra, was carried out to determine the magnitude value of gravitational acceleration as a reference for activity in the observatory area. The measurements were made using a simple instrument, Mathematical Swing, through simple harmonic motion. The experiment was conducted on the OIF UMSU outdoor area on the 7th floor/rooftop of the UMSU’s Postgraduate Building. From the research, a single measurement result is (9.463777 ± 0.009) m/s2 and the repeated measurement method obtained the result gravitation is (9.59825 ± 0.001) m /s2.
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