Measuring g with a Pendulum - Smartphone Method (H2 Physics Practical 2026)
Study guide
Q: What does Measuring g Using a Smartphone Pendulum for A-Level Physics Practicals cover?
A: Transform your phone into a precision timer for pendulum experiments.
TL;DR
Your smartphone's accelerometer can time pendulum swings with millisecond-level timestamps when the app samples fast enough. This guide shows how to measure within a few percent of , handle amplitude/systematic effects, and extract clean data using free sensor apps-good rehearsal for H2 Physics practical prep or home revision.
Pair this drill with the full practical roadmap in our H2 Physics practical experiments guide.
Why Your Phone Beats a Stopwatch
Traditional pendulum experiments suffer from human reaction time (~0.2s), which can push
Reviewed by
Chee Wei Jie·Academic Advisor (Physics)
Practical course completion-record note
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