Question

Why does metal expand on heating?

Answer 1

Answer:

Heat Expansion in Different Metals. ... The expansion (or contraction) of any material is due to the kinetic energy of its atoms. When a material is heated, the increase in energy causes the atoms and molecules to move more and to take up more space— that is, to expand. This is true of even a solid such as a metal.

Explanation:

Answer 2

Answer:

metal stretch of heating

Explanation:

*when metal is heated it expand