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Pili, Unofre B.

Pili, Unofre B.

ubpili@usc.edu.ph

Degrees

B.S. Physics, Mindanao State University, 2001
M.S. Physics, University of San Carlos, 2013

Research Interests:

Acoustics, condensed matter physics, high-temperature superconductivity

Recent Publications:

  1. Pili, U.B.; Bulanon, H.P.; Fajardo, R.V.. Spreadsheet inquiry-based teaching of Kepler’s third law and the solar mass using comets and asteroids data. Physics Education. 2026, https://doi.org/10.1088/1361-6552/ae4936.
  2. Ruiz, F.M.; Reyes, M.G.; Yuson, H.; Ruiz, B.; Pili, U.. Mobile phone-integrated demonstration of Kepler’s second law of planetary motion and the conservation law of angular momentum. Physics Education. 2025, https://doi.org/10.1088/1361-6552/adf36d.
  3. Pili, U.B.. Unconventional free fall measurements of g: involving the Pythagorean Theorem and inverse tangent function. Physics Education. 2024, https://doi.org/10.1088/1361-6552/ad6c9b.
  4. Marte, S.J.; Bug-Os, M.A.A.C.; Pili, U.B.. Comparative experiment using free fall and projectile motions in determining the acceleration due to gravitational force. Physics Education. 2024, https://doi.org/10.1088/1361-6552/ad4f40.
  5. Pili, U.B.. Using a Styrofoam Sphere and Video Analysis to Demonstrate the Linearly Resisted Harmonic Oscillator. Physics Teacher. 2024, https://doi.org/10.1119/5.0125046.
  6. Bug-Os, M.A.A.C.; Marte, S.J.; Pili, U.B.. Verification experiment of the coefficient of static and kinetic friction utilizing a mobile application. Physics Education. 2023, https://doi.org/10.1088/1361-6552/acf431.
  7. Pili, U.B.. Work-based measurement of k with a spring-mass system: a demo of the work done by a variable force. Physics Education. 2023, https://doi.org/10.1088/1361-6552/acdbb2.
  8. Gabunilas, L.M.; Santos, K.J.M.; Buar, C.L.; Castillo, J.M.L.; Pili, U.B.. Improvising an apparatus for teaching sound waves using smartphones. Physics Education. 2023, https://doi.org/10.1088/1361-6552/ac9efb.
  9. Pili, U.; Violanda, R.. Measuring a spring constant with a smartphone magnetic field sensor. Smartphones as Mobile Minilabs in Physics Edited Volume Featuring More than 70 Examples from 10 Years the Physics Teacher Column Iphysicslabs. 2022, https://doi.org/10.1007/978-3-030-94044-7_34.
  10. Pili, U.; Violanda, R.. Measuring average angular velocity with a smartphone magnetic field sensor. Smartphones as Mobile Minilabs in Physics Edited Volume Featuring More than 70 Examples from 10 Years the Physics Teacher Column Iphysicslabs. 2022, https://doi.org/10.1007/978-3-030-94044-7_14.
  11. Pili, U.; Violanda, R.; Ceniza, C.. Measurement of g using a magnetic pendulum and a smartphone magnetometer. Smartphones as Mobile Minilabs in Physics Edited Volume Featuring More than 70 Examples from 10 Years the Physics Teacher Column Iphysicslabs. 2022, https://doi.org/10.1007/978-3-030-94044-7_30.
  12. Pili, U.B.; Yanga, D.M.. Infrared Absorption in High-Tc Superconductors Using the Spin Polaron Formulation. Journal of Superconductivity and Novel Magnetism. 2022, https://doi.org/10.1007/s10948-022-06142-7.
  13. Pili, U.B.. Rapid estimation of π by weighing triangles, circles, and ellipses. Physics Education. 2022, https://doi.org/10.1088/1361-6552/ac45c8.
  14. Pili, U.B.; Violanda, R.R.. Tracker-assisted modelling: Simultaneous validation of the conservation law of energy and the work-energy theorem. Physics Education. 2022, https://doi.org/10.1088/1361-6552/ac36a9.
  15. Pili, U.B.; Violanda, R.R.. Measurement of a spring force constant using sound, door alarm, and soundcard oscilloscope. Physics Education. 2021, https://doi.org/10.1088/1361-6552/ac1c4a.
  16. Pili, U.B.. Newton's cradle: Using a smartphone sound sensor to extract g from the sound of impacts. Physics Education. 2021, https://doi.org/10.1088/1361-6552/abf5f1.
  17. Pili, U.B.. Rapid dynamical study of Newton's law of heating with machine vision. Physics Education. 2021, https://doi.org/10.1088/1361-6552/abebb8.
  18. Pili, U.B.. Expressing Newton's second law of motion as Fnet= 2ma and kinetic energy as KE = mv 2. Physics Education. 2020, https://doi.org/10.1088/1361-6552/ab9873.
  19. Pili, U.B.; Violanda, R.R.. Extracting Earth's orbital period from atmospheric CO2concentrations using the Fourier transform based on Matlab. Physics Education. 2020, https://doi.org/10.1088/1361-6552/ab9215.
  20. Pili, U.B.. Modeling damped oscillations of a simple pendulum due to magnetic braking. Physics Education. 2020, https://doi.org/10.1088/1361-6552/ab7c81.
  21. Pili, U.B.. Measuring a spring constant using an optical spring-mass system and a solar panel. Physics Education. 2020, https://doi.org/10.1088/1361-6552/ab5399.
  22. Pili, U.B.. Sound-based measurement of g using a door alarm and a smartphone: Listening to the simple pendulum. Physics Education. 2020, https://doi.org/10.1088/1361-6552/ab6e00.
  23. Pili, U.; Violanda, R.. Smartphone-based measurement of the Planck's constant with light-emitting diodes. Physics Education. 2019, https://doi.org/10.1088/1361-6552/ab0185.
  24. Pili, U.. Speed invariant algebraic combinations of mass, length, and time. Physics Education. 2019, https://doi.org/10.1088/1361-6552/aaffa9.
  25. Pili, U.; Violanda, R.. Measuring a spring constant with a smartphone magnetic field sensor. Physics Teacher. 2019, https://doi.org/10.1119/1.5092488.

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