Investigating the Effect of Changing the Mass of Varying Blocks ( 0.040, 0.060, 0.080, 0.100, 0.120 ± 0.0001 kg) Attached to a Pulley System on the Angular Velocity of a Toy Car's Wheels Rolling Up an Incline.HL
Loading scores...
7
Official IB Result
IB Grade: 7
Criteria A: Research Design
6/6
0
3
6
Criteria StrandsPro
A.1Research question context
Excellent
A.2Methodological considerations for collecting data
Excellent
A.3Methodological considerations
Excellent
Criteria Feedback
- The student's research question is highly specific, focused, and testable, with the key variables and measurement conditions clearly identified.
- The student explains several sensible methodological choices, including repeats, controlled conditions, and a justified mass range based on preliminary testing.
- The student's procedure is detailed enough that another student could largely reproduce the investigation.
- A few force-analysis and modelling details could be stated more explicitly so the logic of the investigation is easier to follow.
- Some assumptions, such as frictional effects and string behaviour, would be stronger if their impact on the model were explained.
- A small number of practical details, such as the exact string/pulley arrangement and timing synchronisation, could be clarified further.
Criteria B: Data Analysis
5/6
0
3
6
Criteria StrandsPro
B.1Communication of data recording and processing
Good
B.2Consideration of uncertainties
Moderate
B.3Data processing quality
Poor
Criteria Feedback
- The student's tables and graphs are clearly organised, labelled, and include units and uncertainties, which makes the data easy to follow.
- The student makes a genuine attempt to treat uncertainty using repeated trials, error bars, and gradient bounds.
- The student's choice of a linearised graph is a sensible analysis strategy for testing the expected relationship.
- Some processed values do not consistently match the raw data and stated formulas, which weakens confidence in the calculations.
- The uncertainty treatment is not always internally consistent, especially for the mean-time uncertainties and gradient range.
- The theoretical processing is not fully consistent, so the comparison between theory and experiment is limited by model issues as well as numerical ones.
Criteria C: Conclusion
4/6
0
3
6
Criteria StrandsPro
C.1Conclusion relevance and support
Moderate
C.2Scientific context comparison
Moderate
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.
Criteria D: Evaluation
6/6
0
3
6
Criteria StrandsPro
D.1Methodological weaknesses
Moderate
D.2Suggested improvements
Moderate
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.