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Lab report checker
Upload your lab report and every problem shows up inside it: missing units, figures you never reference, a conclusion that doesn't answer the objective. Each one is a suggested fix you can accept or reject.
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Lab 3
Abstract
In this lab we used a spring and some masses to learn about Hooke's law. We measured how far the spring stretched and made a graph. The results were pretty close to what we expected.
Introduction
Hooke's law says that the force needed to stretch a spring is proportional to how far it is stretched. This is important in many engineering applications such as suspensions and scales.
Methods
- Hang the spring from the clamp stand.
- Add a mass to the hanger and measure the stretch with the ruler.
- Repeat for five different masses.
Results
The stretch for each mass is shown in the table below. The data clearly proves that the spring obeys Hooke's law perfectly, which is because the spring was made of steel.
| Mass | Stretch |
| 50 | 2.1 |
| 100 | 4.0 |
| 150 | 6.2 |
| 200 | 8.1 |
| 250 | 9.9 |
Figure 1: Graph
The slope of the line was 24.87361 so the spring constant is 24.87361.
Discussion
Our spring constant is close to the value on the box. We also tried a second spring that had a constant of about 40, which was stiffer. The small differences are probably due to human error.
Conclusion
In this lab we hung a spring from a clamp stand, added masses, measured the stretch with a ruler, and made a graph of the results.
Guide
What it checks
- Title
- Does it say what was measured?
- Abstract
- Does it include the purpose, the method, the main result with a number, and what it means?
- Objective
- Is there a clear objective or hypothesis?
- Methods
- Could someone repeat the experiment from what you wrote?
- Figures and tables
- Is each one numbered, captioned and mentioned in the text?
- Units and significant figures
- Does every number have units, at a precision the measurement supports?
- Results vs. discussion
- Is interpretation kept out of the results and new data out of the discussion?
- Error analysis
- Is there one, and does it name the sources that mattered?
- Conclusion
- Does it answer the objective with the final number?
- Consistency
- Does the tense and voice stay the same throughout?
- References
- Are they there, and all in one style?
Guide
How the results work
Your report opens in the editor with the problems marked inline. When something can be fixed in place, like a missing unit or a sentence that slips into present tense, you see the change directly: the old text crossed out, the new text next to it. Accept it or reject it.
When something is missing, like an error analysis section, the checker doesn't write it for you. It puts a note in brackets where it belongs, telling you what to add. That way nothing you didn't write ends up in your report unless you accepted it. It also never changes a number except to add units or round it to the right precision.
A short summary in the side panel lists which areas are fine and which need work. Each check covers up to 25 fixes, starting with the ones that matter most.
FAQ
Before you start.
Does it write my report for me?
No. It fixes small things in place, like units and tense, and marks what's missing with a note. You write the missing parts.
Is my report stored or shared?
Your report opens as a document in your VibeWrite account, or in a temporary one if you haven't signed up. It isn't shared with anyone. To run the check, the text is sent to the AI model provider VibeWrite uses.
Is it free?
Your first check is free with no account. After that, sign up (also free) to keep checking.
Can I check it against my course's rubric?
Not yet. For now it checks against the conventions most engineering courses use.
Does it work for non-engineering labs?
It's built around engineering and physical-science lab reports. It works for chemistry and biology labs too, but some checks (like error propagation) may matter less there.
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