Different materials conduct heat at different rates due to their atomic structure.
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Learning Points
- Heat always flows from high to low temperature (Fourier's Law)
- Particles vibrate more when hot, transferring energy to neighbours
- Particles don't move along the rod (solid state)
- Better conductors reach equilibrium faster
- At equilibrium, the entire rod reaches the heat source temperature
- Energy is conserved — it spreads out but doesn't disappear