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PHY.1:3 - Forces
| Choice | What it changes |
|---|
| Whole behavior or one output | Reproducing one displacement or threshold can require less than reproducing the complete field or time history. |
| Smaller experiment or unchanged balance of effects | Length, area and volume scale differently; material properties and preparation may need to change too. |
| Useful simplification or an omitted mechanism | Removing a small contribution simplifies the comparison, but its effect can accumulate or control behavior near a transition. |
| Mathematical settings or available physical means | Equations may require material properties or forcing that the proposed apparatus cannot supply together. |
| One matched experiment or several complementary results | Combining calculations and observations can answer a question that no single scaled arrangement reproduces. |