is this correct statement
heat expands a metal but cold contracts it

Open in App

Solution

Yes, the statement is true.

Metal expand on heating and this is known as thermal expansion.
A space is introduced between metal joints on the road bridges and two adjacent railway tracks to allow for thermal expansion and contraction.

Suggest Corrections

Similar questions

On heating a metal it contracts while on cooling it expands.

Water is cooled from $4^{\circ} C t o 0^{\circ} C$ . It :

(a) contracts (b) expands

(d) first expands, then contracts.

"A substance expands on heating and contracts on cooling”. Justify this statement. [2 MARKS]

When water cools, first it expands in volume but below 4°C it starts contracting until it reaches 0°C.

Join BYJU'S Learning Program