Abstract: A physics experiment on spring oscillation using a mobile phone acceleration sensor is developed.The mobile phone is connected to a fixed end by a spring and oscillated after receiving an upward push. Acceleration graphs for the case of simple and damped harmonic oscillations are got. Results for the spring constant,acceleration due to gravity and a formula for damped harmonic oscillation are obtained according to the graphs.

Key words: mobile phone acceleration sensor, simple harmonic oscillation, damped harmonic oscillation