The student's essay title accurately reflects the aim of the investigation and is presented as a statement of appropriate length. Additionally, the early sections of the essay effectively outline the area of research and relevant physics principles, providing qualitative descriptions and diagrams. The formal development of theory later in the essay is clear and well-structured. The student successfully incorporates relevant physics theory based on reliable literature research. Furthermore, the student's consideration of uncertainties and limitations, as well as their explanation of the rationale for choosing experimental methods, are well-presented.
