In this study, Ubiquitous-Physics was designed and proposed for facilitating students to learn simple pendulum concepts. U-Physics can facilitate collecting experimental data and drawing the corresponding graphs during the experiment, whereby students can focus on how to interpret graphs and solve problems through applying formulas. The participants were second grade female vocational high school students who are fewer interests in physics, while hopefully using U-Physics in the physical experiment can motivate their interests and help their learning in physics. The findings showed that significant correlations existed among hypothesis-making, interpreting graphs, applying formulas, conclusion-making, conceptual understanding, and post-test. After an in-depth investigation, we found that interpreting graphs and conceptual understanding were the two most important factors to affect learning achievement. Additionally, students perceived that U-Physics was beneficial to their physics learning.