<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The development of a cost-effective experiment set is essential for teaching and learning physics in educational institutes. We aim to develop a computer-based simple pendulum experiment set consisting of a simple pendulum, infrared phototransistor, and Arduino board for calculating the gravitational acceleration (g). We used 13 pendulum lengths with five angles for each length to measure the period of motion. We found linear relationships between lengths and period-squared. The <italic>g</italic>-value was 9.806 ± 0.025 (average ± standard error) m/s<sup>2</sup>. Since this experiment set is cost-effective, and more straightforward method to understand, it will benefit the physics learning in educational institutions.</p></abstract>

The development of a cost-effective experiment set is essential for teaching and learning physics in educational institutes. We aim to develop a computer-based simple pendulum experiment set consisting of a simple pendulum, infrared phototransistor, and Arduino board for calculating the gravitational acceleration (g). We used 13 pendulum lengths with five angles for each length to measure the period of motion. We found linear relationships between lengths and period-squared. The g-value was 9.806 ± 0.025 (average ± standard error) m/s2. Since this experiment set is cost-effective, and more straightforward method to understand, it will benefit the physics learning in educational institutions.

Development of a computer-based simple pendulum experiment set for teaching and learning physics

International Journal on Smart Sensing and Intelligent Systems

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

running-head

Development of a computer-based simple pendulum experiment set:

The development of a cost-effective experiment set is essential for teaching and learning physics in educational institutes. We aim to develop a computer-based...

	7 degree		10 degree		15 degree		20 degree		25 degree
Length (m)	T (s)	T²(s²)	T (s)	T² (s²)	T (s)	T² (s²)	T (s)	T² (s²)	T (s)	T²(s²)
0.20	0.894	0.800	0.903	0.815	0.901	0.811	0.895	0.801	0.913	0.834
0.25	1.003	1.006	1.014	1.029	1.014	1.029	1.017	1.034	1.031	1.063
0.30	1.084	1.174	1.110	1.233	1.108	1.228	1.096	1.202	1.116	1.245
0.35	1.180	1.392	1.184	1.402	1.188	1.411	1.191	1.419	1.208	1.459
0.40	1.257	1.581	1.250	1.561	1.263	1.596	1.274	1.622	1.290	1.664
0.45	1.340	1.796	1.331	1.772	1.354	1.834	1.367	1.870	1.380	1.904
0.50	1.435	2.059	1.424	2.029	1.442	2.081	1.416	2.004	1.438	2.068
0.55	1.470	2.159	1.483	2.200	1.499	2.246	1.511	2.282	1.530	2.341
0.60	1.560	2.433	1.561	2.436	1.550	2.458	1.564	2.447	1.580	2.496
0.65	1.619	2.620	1.610	2.591	1.627	2.660	1.638	2.682	1.640	2.690
0.70	1.678	2.815	1.676	2.808	1.698	2.885	1.673	2.799	1.692	2.861
0.75	1.751	3.065	1.733	3.002	1.732	3.027	1.751	3.065	1.753	3.074
0.80	1.783	3.178	1.803	3.251	1.778	3.205	1.794	3.218	1.812	3.284

The angular displacement ( $θ_{0}$ )	Gravitational acceleration (m/s²)	Error (%)
7^o	9.773	0.087
10^o	9.802	0.205
15^o	9.802	0.210
20^o	9.838	0.573
25^o	9.817	0.365
Average	9.806 ± 0.025	0.253

Development of a computer-based simple pendulum experiment set for teaching and learning physics

Published Online: Jul 28, 2021

Page range: 1 - 8

Received: Feb 02, 2021

DOI: https://doi.org/10.21307/ijssis-2021-014

Keywords
Teaching and learning physics, Computer-based experiment set, Gravitational acceleration, Simple pendulum

© 2021 Warawut Sukmak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Figure 2:

Figure 3:

Figure 4:

Figure 5:

Figure 6:

Figure 7:

Figure 8:

Squared period form experimental data.

Values of gravitational acceleration (g).

Development of a computer-based simple pendulum experiment set for teaching and learning physics

Published Online: Jul 28, 2021

Page range: 1 - 8

Received: Feb 02, 2021

DOI: https://doi.org/10.21307/ijssis-2021-014

KeywordsTeaching and learning physics, Computer-based experiment set, Gravitational acceleration, Simple pendulum

© 2021 Warawut Sukmak et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1:

Figure 2:

Figure 3:

Figure 4:

Figure 5:

Figure 6:

Figure 7:

Figure 8:

Squared period form experimental data.

Values of gravitational acceleration (g).

Keywords
Teaching and learning physics, Computer-based experiment set, Gravitational acceleration, Simple pendulum