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Abstract
This research aims to identify the most accurate laboratory method for determining the acceleration due to gravity (g) at a specific location. Data were collected using four laboratory methods to measure g in the physics laboratory. The results from these methods were compared with theoretical values, and the most effective method was identified as the physical pendulum approach. The experimental value obtained for g in Kabul was gexp=978.767 cm/s2g_{\text{exp}} = 978.767 \, \text{cm/s}^2gexp=978.767cm/s2, which differs by 0.3 from the theoretical value of gthe=978.4986 cm/s2g_{\text{the}} = 978.4986 \, \text{cm/s}^2gthe=978.4986cm/s2. The experimental error was 0.3%, which is within the permissible range of laboratory instrument and calculation errors.
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References
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References
. جعفریان، هایده وهمکاران دستور کار ازمایشگاه فزیک پایه۱: دانشگاه صنعتی شاهرود ۱۳۹۷.
Serway, R. A. and J. W. Jewett, Jr. Physics for Scientists and Engineers with Modern Physics, Tenth Edition. 10. s.l. : CENGAGE, 2019. p. 335.
Young, H. D., Freedman, R. A. and Ford, A. L. UNIVERSITY physics WITH MODERN PHYSICS. 13. s.l. : Addison-Wesley, 2012. p. 454.
On The Analytical Methods Approximating The Time Period Of The Nonlinear Physical Pendulum. Szabó, Z. 1, 2004, Periodica Polytechnica Ser. Mech. Eng., Vol. 48, pp. 73-82.
A new method of measuring gravitational acceleration in an undergraduate laboratory program. Wang, Qiaochu, et al. 2018, Eur. J. Phys., Vol. 39, p. 11.
Wang, Qiaochu, et al. 2018, Eur. J. Phys., Vol. 39, p. 11.
Experimental Study of Determination of Earth's Gravitational Acceleration Using the Concept of Free-Fall Motion and Conservation of Mechanical Energy. Yuningsih, Nani and Sardjito. Bandung : AIP, 2021. The 2nd Science and Mathematics International Conference (SMIC 2020). 030028.
Oscillations of a simple pendulum with extremely large amplitudes. Butikov, E. I. 2012, Eur. J. Phys. 33, Vol. 33, pp. 1555–1563.
Walker, J. Hallidy & Resnick FUNDAMENTALS OF PHYSICS. 9. s.l. : John Wiley & Sons, Inc., 2011. p. 398.
A new method of measuring gravitational acceleration in an undergraduate laboratory program. all, Wang Q. et. 2018, Eur. J. Phys., Vol. 39, p. 11. 015701.
An experiment on a physical pendulum and Steiner’s theorem. Russeva, G B, Tsutsumanova and Russev. 1, January 2010, Physics Education, Vol. 45, pp. 58-62.