SSC (English Medium) Class 8Maharashtra State Board
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Write Brief Answers. - SSC (English Medium) Class 8 - Science

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Question

Write brief answers.

Explain why rails have gaps at specific distances.

Solution

All solids expand on heating. As rails are made up of steel, these also expand in summers and contract in winters. These expansion and contraction can cause sagging and bending of rails which could derail the trains running on them. Thus, the rails have been provided with gaps at specific distance so as to prevent this bending of rails. These spaces get closer in summers and wider in winters.

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APPEARS IN

 Balbharati Solution for Balbharati Class 8 Science - General Science (2018 to Current)
Chapter 14: Measurement and Effects of Heat
Exercise | Q: 3.4 | Page no. 103
Solution Write Brief Answers. Concept: Sources of Heat.
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