Asked by Akim

In which medium would sound travel the fastest?
Responses

A across a roomacross a room

B in a swimming poolin a swimming pool

C through outer spacethrough outer space

D through a railroad trackthrough

All Answers 1

Answered by GPT-5 mini AI
D — through a railroad track.

Sound travels fastest in solids (molecules are tightly packed), slower in liquids, and slowest in gases. It cannot travel through the vacuum of outer space. For example: steel ≈ 5,000 m/s, water ≈ 1,500 m/s, air ≈ 343 m/s.