Science, asked by bbushra10010, 7 months ago

iron rails expand during summer give reasons ​

Answers

Answered by chaudhryvikram19
5

Answer:

Rails expand and contract due to thermal expansion and contraction of materials. ... Rails expands when temperature increases and contracts when temperature decreases. ... Rails are made from Steel which has the physical property of expansion and contraction during temperature variations.

Explanation:

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Answered by ana205
3

Answer:

Intense heat causes steel railroad tracks to expand, which is due to thermal expansion, i.e expansion due to supply of heat.

Explanation:

During the summer seasons, intense heat causes iron to expand (property of thermal contraction and expansion). Rail expands when temperature increases and contracts when temperature decreases.

Also for this reason, there is a gap (of around few milimeters) between the rails so as to allow space for the rails to expand due to the rise in atmospheric temperature as well as due to the friction caused by running of train.

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