N old times, before there were train signals, people who worked on the railroad would often put their ear down to the train track to listen for an oncoming train.

Why would this result in hearing the train further off than just listening for the train through the air?

Question 3 options:

Sound travels slower, but louder through solid material because it is more dense, so the train could be heard better this way.

Sound travels slower in air because there are often trees and other items blocking the sound.

Sound waves travel faster in more dense material, and the more dense the material the louder the sound is.

People did not do this because sound travels faster through less dense material, like air, rather than more dense materiel, like train tracks.

Question

Winston Ho

Chemistry

29 March, 10:52

N old times, before there were train signals, people who worked on the railroad would often put their ear down to the train track to listen for an oncoming train.

Why would this result in hearing the train further off than just listening for the train through the air?

Question 3 options:

Sound travels slower, but louder through solid material because it is more dense, so the train could be heard better this way.

Sound travels slower in air because there are often trees and other items blocking the sound.

Sound waves travel faster in more dense material, and the more dense the material the louder the sound is.

People did not do this because sound travels faster through less dense material, like air, rather than more dense materiel, like train tracks.

+4

Answers (1)

Know the Answer?

Eden Bender · Answer 1

Answer is: Sound waves travel faster in more dense material, and the more dense the material the louder the sound is.

Sound travels approximately fifteen times faster through the metal railway tracks than through air. The speed of sound is faster in solid materials and slower in liquids or gases. The denser is material, t he closer are the molecules to each other and the less time it takes to molecules to pass the sound to each other and sound is faster.