This thesis provides an overview of sonification, relevant sonification theory, and different applications. Specifically, it investigates interactive sonification, and aims to compare and evaluate a discrete vs. a continuous sonification in an interactive physics simulation. A design and implementation process of these two sonification instances is described, before conducting an experiment to measure user experience for the two cases. However, the results of the experiment (n=22) were not statistically significant (p=0.175), and therefore no conclusion with respect to measured user experience can be made. However, qualitative results are still discusses, as well as limitations and future work.