Physics 12 Week 13 · Sankey Energy Flow Mapper

Scientific scope and safety

Assume a fictional steady process with no net change in device-stored energy: E_input=E_useful+E_thermal+E_other. 'Useful' is defined by the device goal. Percentages cannot sum beyond 100%. Power is each transfer's joules divided by the SAME positive interval.

1. Choose energy pathways

My hypothesis or intended engineering purpose

Input energy 500 J

Useful output fraction 60 %

Thermal pathway fraction 25 %

Common interval duration 5 s

Import JSON

2. Energy-pathway Sankey visualization

The geometry is schematic; use the accompanying numerical readout and data table for exact quantities. Other energy remains accounted for—it is not destroyed.

3. Quantitative sensitivity chart

Fixed-input sensitivity (model-generated)
Useful (%)	Useful energy (J)	All other energy (J)

4. Evidence notebook

Saved fictional energy-system trials
#	Input J	Useful %	Thermal %	Time s	Useful J	Thermal J	Other J

Claim, numeric evidence, design requirements and limitations

Download synthetic energy-system cases

5. Seven-round engineering challenge

Seven nonrepeating cases randomly drawn from eleven. Predict the remaining other-energy joules, then inspect the worked feedback.

Start a new challenge.

Score: 0 / 7