Question

state three application of expansion in solids only, briefly explanation in your answer.
ya! don't answer something else! ​

Answer 1

1

In the “old days,” the thermostat in your house was a bimetal strip where the two metals had a different coefficient of thermal expansion (CTE). This would cause the strip to bend in response to temperature. There was usually a mercury switch that would make a connection at a certain angle to turn on either the heat or air conditioning.

2.

While not really an application, any time you make a device composed of two or more types of material, you have to consider the CTE to make sure they will not break apart when the devices changes temperature.

3.

I recently learned that our ancestors used ice as a prehistoric dynamite. They drilled small holes in rocks, poured in some water, and let it freeze. The expansion when turning to ice would crack the rock. Obviously, this could only be done in cold environments at the time.

hope this helps u.

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