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Laws describe, causes explain
Physical laws don't cause things; they describe relationships. Explanations require understanding the mechanical causes behind phenomena, not just the mathematical correlations.
- ⚛️ Conservation of angular momentum explains *how* spinning objects speed up or slow down, but not *why* atoms obey it.
- 📐 A shadow's length is related to the nail's height and light source position, but these laws don't *cause* the nail's height.
- ➡️ The direction of angular momentum is determined by the right-hand rule, not by a physical force.
- 🔄 Turning a spinning wheel upside down causes the person holding it to rotate due to torques applied by the wheel's mass, not directly by angular momentum conservation.
A close-up of a hand holding a marker over a diagram on graph paper, with orange and blue lines and dots.