What is the effect of different internal air pressures (5,8,11 psi) of a basketball on its rebound height when dropped from an initial height of one meter?HL
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6
Official IB Result
IB Grade: 6
Criteria A: Research Design
5/6
0
3
6
Criteria Strands
A.1Research question context
Excellent
A.2Methodological considerations for collecting data
Good
A.3Methodological considerations
Good
Criteria Feedback
- You frame the investigation in a specific and appropriate real-world context and clearly connect it to the physics being tested.
- Your method is detailed enough that another student could largely reproduce the investigation.
- You justify several methodological choices well, including the selected pressure values, frame rate, and use of Tracker.
- Some procedural details are still not fully operationalized, such as exact camera positioning and how alignment was checked.
- The justification for data sufficiency could be stronger, especially around the number of trials and control of conditions.
- A few steps rely on human judgement, which leaves small ambiguities in the procedure.
Criteria B: Data Analysis
6/6
0
3
6
Criteria Strands
B.1Communication of data recording and processing
Excellent
B.2Consideration of uncertainties
Good
B.3Data processing quality
Excellent
Criteria Feedback
- Your tables and calculations are clearly organized and easy to follow.
- You communicate the processing steps transparently, including a worked example of the mean and uncertainty calculation.
- Your data processing is mathematically appropriate and supports the patterns you identify in the investigation.
- You make effective use of graphs, fitted lines, and R² values to show the relationship in the data.
- Uncertainty is not carried through consistently for all data points and processed values.
- The uncertainty in the starting height is not included, even though it affects the derived outcome.
- Your reported precision is sometimes finer than the measurement resolution supports.
- The uncertainty treatment would be stronger if it were applied consistently to every pressure condition and shown more fully on the graphs.
Criteria C: Conclusion
3/6
0
3
6
Criteria Strands
C.1Conclusion relevance and support
Excellent
C.2Scientific context comparison
Poor
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.
Criteria D: Evaluation
3/6
0
3
6
Criteria Strands
D.1Methodological weaknesses
Good
D.2Suggested improvements
Good
Criteria Feedback
- Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
- 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.