Criterion A: The choice of the topic is justified through apparent personal significance, interest, or curiosity

Comment: The student justifies the choice of topic with their interest in the topic of sound intensity which sparked while the student was listening to music - the evidence of the personal significance of the topic is clearly described by linking it with a personal experience

Criterion A: Evidence of personal input and initiative in the designing, implementation, or presentation of the investigation is present

Comment: In the methodology, the student should include a section devoted to describing the preliminary trial they had conducted before conducting the actual experiment to present their initial plan for the experiment and discuss possible adjustments to the experimental procedure they have made after conducting the trial. The procedure of the trial should be described by the student step by step and any methodological issues found during the trial should be discussed

Criterion B: A focused and detailed topic of the investigation is identified

Comment: The topic of the investigation ("AN INVESTIGATION INTO THE EFFECT OF DISTANCE FROM SOUND EMITTING SOURCE ON MEASURED SOUND INTENSITY LEVEL") is stated correctly at the beginning of the work. Moreover, the student provides a focused and easily understandable breakdown of the topic of the IA and what will be done in it. After reading the Introduction section (and later the Methodology subsections), the reader gets a pretty clear and on-point idea of what the exploration will concern

Criterion B: A relevant and fully focused research question is clearly described

Comment: The student has successfully identified the variables, however, to make the research question more focused, the student is advised to note the range of values of the independent variable (distance from the speaker) and state the units of the independent and dependent variables. Moreover, the research question could still be improved by changing the question tag "how" to "to what extent" to allow the student to pursue research that is more detailed and has a wider range. Then, the answer to the research question will not impose a short and limited answer such as "affects greatly", "or increases". Instead, a more detailed analysis with discussion can be pursued

Criterion B: The physics is explained well enough for the reader to fully and easily understand it without the need of rereading

Comment: All of the concepts associated with the topic (e.g. sound intensity, reference intensity) are clearly described in the "Background Theory" section and throughout the body of the work. To improve, the student is advised to include some figures (graphs, models) to visualize the phenomena discussed in the background information

Criterion B: The methodology of the investigation is focused on addressing the research question

Comment: The student correctly identifies the independent (distance from the speaker) and dependent (sound intensity) variables to pursue the research question

Criterion B: The methodology of the investigation is focused on addressing the research question

Comment: The student correctly identifies the independent (distance from the speaker) and dependent (sound intensity) variables to pursue the research question

Criterion B: The methodology of the investigation includes steps to assure the relevance and reliability of the collected data

Comment: On pages 3-4, the student discusses the variables that need to be controlled or maintained constant for the results to be valid. The control methods and the reasons for control for the variables are also correctly described

Criterion B: The methodology of the investigation includes steps to assure the relevance and reliability of the collected data

Comment: On pages 3-4, the student discusses the variables that need to be controlled or maintained constant for the results to be valid. The control methods and the reasons for control for the variables are also correctly described

Criterion B: The student shows full awareness of safety hazards that can arise during the procedure

Criterion B: The student shows full awareness of the ethical issues that are relevant to the procedure

Criterion B: The student shows full awareness of environmental issues that are relevant to the procedure

Criterion B: The student shows full awareness of the ethical issues that are relevant to the procedure

Criterion B: The student shows full awareness of safety hazards that can arise during the procedure

Criterion B: The student shows full awareness of environmental issues that are relevant to the procedure

Criterion B: The student shows full awareness of environmental issues that are relevant to the procedure

Criterion B: The student shows full awareness of safety hazards that can arise during the procedure

Criterion B: The student shows full awareness of the ethical issues that are relevant to the procedure

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