a. steel
b. water
c. air
d. vacuum
2007-05-06 22:27:41 · 6 answers · asked by miss tiramissyou 1 in Science & Mathematics ➔ Other - Science
hi
sound waves, unlike light and radio waves, need something to travel through. The more dense that material the better the sound travels.
In your list steel is the most dense and is the correct answer.
If you want to tell if a train is coming, place your ear to the steel rail and you will hear it far sooner than just normally in air.
So steel, then water, then air, and it doesnt travel in a vacuum.
m
x
2007-05-06 22:45:01 · answer #1 · answered by Maria G 2 · 1⤊ 0⤋
steel
the closer the molecules are the better sound will travel
so in liquids and air you will get less sound travelling slower
and there arent any particles in space so no sound
this is why in old movies you see train robbers listening to steel girders and tracks to see if a train is coming
2007-05-07 11:35:09 · answer #2 · answered by ~*tigger*~ ** 7 · 0⤊ 0⤋
Steel.
Say you put a ringing bell in a steel object, the vibrating air will make the steel vibrate which will echo to our ears.
2007-05-07 05:37:29 · answer #3 · answered by sneakyface 3 · 0⤊ 0⤋
steel
2007-05-07 05:32:09 · answer #4 · answered by ★Greed★ 7 · 0⤊ 0⤋
steel
2007-05-07 05:32:00 · answer #5 · answered by Helmut 7 · 0⤊ 0⤋
air
2007-05-07 05:32:45 · answer #6 · answered by Albert Henry 1 · 0⤊ 3⤋