The student’s understanding of the subject is evident through the correct use of relevant terms and concepts, demonstrating a solid grasp of physics principles, particularly aerodynamics. They effectively discuss relevant processes and theories, using appropriate terminology to explain drag forces and their implications on parachute performance. The student applies subject-specific terms throughout the essay, clearly linking concepts such as denier and drag coefficient to their investigation. Additionally, they explore the topic comprehensively by incorporating a variety of reputable research materials that support their analysis and findings, all of which are directly relevant to the posed research question. Overall, the student has successfully integrated their research into a coherent exploration of how denier values affect drag coefficients in parachutes.