Eli5 Is there a maximum sound frequency that can travel trough concrete?

Question

Does sound at 10000Hz or higher travel through concrete? If so how is it possible that solid can vibrate at such a frequency?

In: 5

Answer 1

The entire thing isn’t moving back and forth simultaneously 10000 times per second. Rather, pressure waves are moving through the material 10000 times per second. This is possible because the bonds between atoms are slightly springy, so a sound wave can enter one point while the rest of the mass is perfectly still, and then move through the mass at high speed as atoms push or tug on one another in rapid succession.