This is a sample report
Illustrative feedback on a made-up Physics investigation — this is what Wenzify gives you for your own IA.
How the length of a simple pendulum affects its period
A well-run investigation that linearises the relationship correctly, but the uncertainties aren't carried through to the gradient and the conclusion isn't yet compared with g. (Science estimates are the least reliable, so treat this as a wide guide.)
~2650 words · Up to 3,000 words. Charts, tables, equations, citations and the bibliography don't count.Estimated
12–16
out of 24
DecentDraft history
How this commentary developed, draft by draft — a record you can show your teacher.
Focus on these first
The highest-impact changes, in order.
Carry uncertainties through to the gradient
Propagate the timing uncertainty into T², add error bars, and use max/min lines to quote the gradient's uncertainty.
Data analysis (Criterion B)
Compare g with the accepted value
Quote a percentage error against 9.81 m s⁻² and say whether it lies within your uncertainty.
Conclusion (Criterion C)
Rank your sources of error
Explain how much each weakness affects g, strongest first, and match each improvement to the error it fixes.
Evaluation (Criterion D)
Comments on your text
Click a highlighted passage to see its comment.
Criterion breakdown
Criterion A
Research design
4 / 6
How to improve
- Justify the length range and why ten oscillations were timed
- State how the amplitude was kept small and constant
To reach 5/6
Explain why the length range and oscillation count were chosen, and how amplitude was controlled.
Criterion B
Data analysis
3 / 6
How to improve
- Add error bars and max/min gradient lines, and quote the gradient's uncertainty
- Propagate the timing uncertainty into T²
To reach 4/6
Propagate uncertainties into T² and show them as error bars with a max/min gradient so the gradient's uncertainty is quantified.
Tables, graphs and figures
Image 1 · Linearised graph with a line of best fit
Figure 1 — T² against pendulum length
Processed data section
- Add vertical error bars from the spread of repeats
- Draw max/min gradient lines and quote the gradient uncertainty
Criterion C
Conclusion
4 / 6
How to improve
- Compare your g with the accepted 9.81 m s⁻² as a percentage error
- State whether the accepted value lies within your uncertainty range
To reach 5/6
Compare your value of g quantitatively with the accepted value and judge the agreement against your uncertainty.
Criterion D
Evaluation
3 / 6
How to improve
- Rank the errors by their impact on g
- Explain how a light gate would reduce the dominant error
To reach 4/6
Explain the relative impact of each weakness on g and tie each improvement to the error it addresses.
What's already working
- Correct linearisation of the relationship
- A reproducible method with controlled variables
- Gradient used correctly to find g
- Specific, realistic evaluation