¿En qué medida afecta la presión de un medio a su impedancia ante la transmisión de ondas mecánicas y por tanto a la intensidad de las mismas?SL
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A
Official IB Result
IB Grade: A
Criteria A: Focus and Method
5/6
0
3
6
Criteria StrandsPro
A.1Topic clarity and communication
Good
A.2Research question formulation and focus
Moderate
A.3Methodology appropriateness and completeness
Moderate
Criteria Feedback
- The student's investigation is clearly communicated and has a recognizable experimental purpose from the outset.
- The student defines a research question that is connected to the experiment and the pressure range they tested.
- The student used a thoughtful apparatus setup with controlled variables, repeated pressure conditions, and a clear procedural sequence.
- The question is broader than it needs to be because it mixes pressure, impedance, transmission, and intensity.
- The method is not fully complete because key measurement details, calibration, and uncertainty handling are not fully established.
- The investigation would be easier to replicate if the exact instrument used for the intensity proxy and the processing steps were stated more precisely.
Criteria B: Knowledge and Understanding
3/6
0
3
6
Criteria StrandsPro
B.1Subject knowledge application
Moderate
B.2Use of terminology and concepts
Moderate
Criteria Feedback
- The student uses relevant physics vocabulary and attempts to link theory to the observed sound measurements.
- The student shows awareness of uncertainty, units, and the need to define quantities in their working.
- The student's report demonstrates a genuine attempt to build subject knowledge into an original experimental design.
- Some key concepts are mixed together, especially static pressure and acoustic pressure.
- The theoretical relationships are not always used in a physically valid way, so the comparison with data is weakened.
- Several units and symbol choices are inconsistent, which makes parts of the physics argument less secure.
Criteria C: Critical Thinking
12/12
0
6
12
Criteria StrandsPro
C.1Research analysis and evaluation
Moderate
C.2Discussion and argument development
Moderate
C.3Critical evaluation
Poor
Criteria Feedback
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Criteria D: Presentation
4/4
0
2
4
Criteria StrandsPro
D.1Structure and formatting
Excellent
D.2Layout and visual elements
Excellent
Criteria Feedback
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- Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
- Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
- Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.