The student outlined the topic of their study at the beginning of the essay, making its aim clear to the reader, which is evident from the topic being stated on the title page and in the abstract. The student also established a clear context of the study, describing the relevant background information, purpose, and focus of the essay. Additionally, the relevant physical principles were identified at the start of the essay, and the reader is presented with a qualitative description of these principles along with diagrams illustrating their key elements. The emphasis of the essay and the research question is on physics as a science, and the student ensures their work is focused on this aspect. However, the essay should have included a clear explanation of how the choice of selected methods and materials addresses the research question, as this justification is currently missing.