Determining the Most Effective Phone Case in Reducing the Acceleration of a Phone

The purpose of this experiment was to determine if an engineered phone case could be created to better protect a cell phone when dropped. In this experiment three different phone cases (an expensive store-bought case, a cheap store-bought case, and an engineered phone case) were tested at two different orientations, vertically and horizontally, at which they were dropped. An accelerometer was attached to the replica phone to measure the maximum acceleration of the phone on impact with the ground from one meter high. In order to most significantly reduce the acceleration of the phone, the engineered case was composed of numerous layers so that the time it takes for the collision with the ground increased, thus reducing the force. Three ANOVA tests and six two-sample t tests were conducted to determine if the engineered phone case had a significant effect on the acceleration of the phone when compared to the acceleration of the competing phone cases. With this knowledge and understanding of how to create a more efficient and protective phone case, people will not have to worry about cracked screens or broken phones, which will not only save the consumer money, but also increase the life span of cellular devices.

Research Conducted By:

Andrew Baran
Warren Mott High School

Timothy Jones
Sterling Heights High School