At high temperature the strength decrease.
when copper and zinc are heated, they create brass :)
decomposition
it turns into liquid
The two metals have different expansion rates when the strip is heated. This means that one of the metals will expand more than the other, causing the strip to bend.
it decreases in strength in meany ways for different materials for exsample, with gases if there is an increase in humidity, then it decreases the dielectric strength
No, metals always expand when heated and contract only when cooled.
materials usually expand when heated.
Why do metals do not catch fire when heated whereas paper ignites on heating
1. Thermal expansion 2. If metals are heated in air some can react with oxygen.
Strength, Endurance, and with some metals: Flexibility
When matter is heated it will expand
Metals are not decomposed by heating. Some metals burn, as magnesium.