STEM PRACTICE AND EVIDENCE WORKBENCH
Compare initial mechanical energy with final mechanical energy plus declared transfer under an explicit residual tolerance.
Review output
Load the worked example to inspect realistic inputs, or enter anonymous classroom or laboratory evidence. Results remain in this browser tab until you copy or download them.
Transparent method
Mechanical energy equals mgh plus one half mv squared. Compare initial mechanical energy with final mechanical energy plus declared transfer. Residual percentage is absolute difference divided by the larger energy magnitude, with a small floor. A supported claim matches the selected tolerance. Agreement supports arithmetic compatibility with the declared boundary; it does not prove every transfer was measured. Review zero level, gravity, uncertainty, external work, friction, rotation, and calibration.
Confirm the question, source, units, notation, response coding, model assumptions, and review threshold. Keep an unchanged copy of the original evidence.
Run the worked example, inspect every intermediate row, and compare it with a hand calculation, diagram, representation, or approved subject method.
Record the method, assumptions, units, classifications, and flagged rows. Verify the editable report independently before educational or laboratory use.
How to interpret the result
Use for a bounded translational mechanical-energy model with one height reference. It does not infer missing energy pathways, include rotation or elasticity automatically, prove isolation, validate sensors, or certify an experiment.
A falling model converts gravitational potential to kinetic energy, a ramp example retains both forms, and a declared loss accounts for a third trial. The final trial starts near 19.62 joules but accounts for only eight, so its yes claim is flagged.
Mechanical energy equals mgh plus one half mv squared. Compare initial mechanical energy with final mechanical energy plus declared transfer. Residual percentage is absolute difference divided by the larger energy magnitude, with a small floor.
A supported claim matches the selected tolerance. Agreement supports arithmetic compatibility with the declared boundary; it does not prove every transfer was measured. Review zero level, gravity, uncertainty, external work, friction, rotation, and calibration.
Do not mix mass and weight, change height reference, omit speed squaring, label unexplained residual as loss, double-count friction, round early, or assume numerical agreement proves conservation. Draw the system boundary and energy stores.
Learning boundary
This browser-local workbench applies only the disclosed rules. It cannot diagnose a learner, certify an experiment, or replace teacher, laboratory, and safety judgment.
Review checklist
Practical questions
No. Processing occurs in the current browser tab. Avoid personal information and retain authoritative records only in the approved school system.
No. It describes entered evidence under one disclosed rule. Review reasoning, uncertainty, access, and several evidence sources.
Treat it as an editable calculation aid. Show your own reasoning, cite required sources, and follow course and academic-integrity rules.
YOUR NIRMION
