Question

What is a thermal contraction ?

Answer 1

hey mate here is your answer



THERMAL EXPANSION ANDCONTRACTION. Materials expand or contract when subjected to changes in temperature. Most materials expand when they are heated, and contract when they are cooled.





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Answer 2

Thermal contraction is the opposite of thermal expansion. When the temperature drops, atoms calm down and shrink. They aren't bouncing so aggressively off of each other and don't need that much space to coexist. When they shrink, the boundaries of the material shrink. The material contracts.

Most solids, liquids and gasses contract when they are cooled. One notable exception is water. Water is a magical element that expands at freezing point. Liquid water contracts when cooled, and you would expect that it continues to contract as it gets colder. When it hits freezing and turns into a solid, it expands. That's why water pipes may burst when the water inside freezes over. Ice takes up more space than liquid water.