Why does water attenuate sound waves more than air? Is it because of it's bulk modulus? This is what I understand. Speed through a medium is determined by the elastic component over the inertial component. Since water has a much greater bulk modulus (elastic component) than air, it makes the wave travel faster in water. What I don't understand is how is it that the speed is faster yet it's attenuation is also greater. Since a sound wave travels faster through water than air shouldn't it also be more resistant to attenuation?