Why does a small piece of steel rod sinks while a large steel oil tanker floats? And pls tell me the 2 laws Plss help thanks! pls include EXPLANATION and EXAMPLES that I can proof to people that has no knowledge ​

Acertain sound is recorded by a microphone. the same microphone then detects a second sound, which is identical to the first one except that the amplitude of the pressure fluctuations is larger. in addition to the larger amplitude, what distinguishes the second sound from the first one? it is perceived as higher in pitch. it is perceived as louder. it has a higher frequency. it has a longer wavelength.