AbstractPhysics subjects encompass all aspects of nature on both the macroscopic and submicroscopic levels. It was reported that upper secondary school students in Malaysia have difficulties in some topics in Physics which lead to poor performance of students and a lack of interest in the Science, Technology, Engineering and Mathematics subjects. This research assessed the level of students' knowledge of Free Fall Motion, explored the difficulties faced by the students with Free Fall Motion’s topics, measured the effectiveness of the constructivist teaching approach for students in learning Free Fall Motion, and collecting students' perception towards the constructivist teaching approach. This study used a pretest-posttest research design. The population was upper secondary school students from public secondary schools in Malaysia and 30 students were selected as a research sample in this study Using descriptive analysis and paired sample t-tests, it was revealed that majority of students pr.....