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Everyday things that expand and contract include metal objects like coins, which expand when heated and contract when cooled. Rubber bands also expand and contract when stretched or relaxed due to changes in temperature. Additionally, gases such as air expand when heated and contract when cooled, which is why a balloon inflated indoors may shrink when taken outside on a cold day.

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What are substances that expand and contract called?

Materials that expand and contract in response to changes in temperature are typically referred to as thermal expansion materials. These materials expand when heated and contract when cooled, which can be useful in various applications such as in thermostats, bimetallic strips, and expansion joints.


Is liquid expand when heated?

Yes, most liquids expand when heated because the heat causes the molecules within the liquid to move faster and spread out, increasing the overall volume. However, there are exceptions such as water, which expands when heated until it reaches a temperature of 4 degrees Celsius, at which point it begins to contract.


Does hardiplank siding expand and contract?

James Hardie siding is dimensionally stable, so it does not expand or contract, which is one of the reasons that it holds paint so well. ...


Why does liquid nitrogen make things shatter?

When an object is immersed in liquid nitrogen, the extreme cold causes the material to rapidly contract and become brittle. Subsequent exposure to room temperature causes the material to quickly expand, leading to internal stress that can cause it to shatter.


What causes a substance to expand?

When a substance is heated, the kinetic energy of its molecules increases, causing them to move faster and further apart. This results in an expansion of the substance's volume. Conversely, when a substance is cooled, the molecules slow down and move closer together, causing the substance to contract.