In this lab activity, students use a PAScar Dynamics System and Data Studio software to investigate the conversion of gravitational potential energy into kinetic energy. Before beginning the experiment, students are asked to list and describe the different energies in the activity. The instructor should move analysis question 2 (Make a hypothesis, in words, relating kinetic and gravitational potential energy) to the Pre-Lab Questions section so that the students form their hypoethesis before conducting the experiment. As the activity is written, it seems the students were to form a hypothesis after the lab during the data analysis, and that isn't when a hypothesis is to be formed. The students should be forming a hypothesis that states the relationship between gravitational potential energy and kinetic energy. After conducting the experiment, the students are asked if their hypothesis was confirmed. If it was not, they are asked to modify it. There are also a series of post-lab questions that test the students' conceptual understanding of the concepts. This activity is probably best used later in the unit on energy, and the instructor should be prepared to lead a discussion about energy transfer as the cart rolls down the ramp.