Final answer:
Expansion and contraction of solids have vital applications, including thermostats and road construction.
Explanation:
Expansion and contraction of solids have various applications. Two examples include:
- Thermostats: Bimetallic strips used in thermostats are made of two different metals with different coefficients of thermal expansion. When temperature changes, one metal expands or contracts more than the other, causing the strip to bend and trigger the thermostat.
- Road construction: Gaps are purposely left between concrete slabs in roads to account for thermal expansion. This prevents cracking or buckling due to expansion under hot conditions.
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