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

Warawut Sukmak; Panjit Musik

doi:10.21307/ijssis-2021-014

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

International Journal on Smart Sensing and Intelligent Systems

Volume 14 (2021): Issue 1 (January 2021)

By: Warawut Sukmak and Panjit Musik

Open Access

|Jul 2021

Figures & Tables

A simple pendulum swinging back and forth about the pivot P. If the angle $θ$ is small about 10° or less, the swinging is approximately simple harmonic motion.

The structure of the experimental set; (a) experimental set, and (b) fix swing angle.

(a) Infrared LEDs circuit, (b) infrared LEDs board.

(a) Phototransistor receiver circuit, (b) phototransistor receiver board.

The computer-based experiment set on a simple pendulum.

Table 1.

Squared period form experimental data.

	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

Relationships of length and period squared for the angles (a) 7°, (b) 10°, (c) 15°, (d) 20°, (e) 25°.

Table 2.

Values of gravitational acceleration (g).

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

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DOI: https://doi.org/10.21307/ijssis-2021-014 | Journal eISSN: 1178-5608

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Language: English

Page range: 1 - 8

Submitted on: Feb 2, 2021

Published on: Jul 28, 2021

Published by: International Journal on Smart Sensing and Intelligent Systems

In partnership with: Paradigm Publishing Services

Publication frequency: Volume open

Keywords:

Teaching and learning physics,

Computer-based experiment set,

Gravitational acceleration,

Simple pendulum

Related subjects:

Engineering,

Introductions and overviews,

Engineering, other

© 2021 Warawut Sukmak, Panjit Musik, published by International Journal on Smart Sensing and Intelligent Systems
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 14 (2021): Issue 1 (January 2021)

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

Figures & Tables

Figure 1:

Figure 2:

Figure 3:

Figure 4:

Figure 5:

Figure 6:

Figure 7:

Table 1.

Figure 8:

Table 2.

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