Question

Hydrophones help scientists listen to and record sounds from the ocean. Which statement best describes how ocean water affects sound waves? Warm water increases the speed of sound. Cold water increases the speed of sound. High water pressure decreases the speed of sound. Low water pressure increases the speed of sound.

Answer 1

The answer is; Warm water increases the speed of sound.

In cold water, the water molecules have lower kinetic energies than in warm water. Sounds travel faster in warm water because the molecules are more energized and the transfer of energy form one molecule to another takes shorter time because of the higher frequency of molecule collision.

Answer 2

Answer:

Option A, Warm water increases the speed of sound

Explanation:

Sound wave is a medium oriented wave which require some medium for travelling. While sound travels through the medium , the atoms and molecules with in the medium also start vibrating.

Thus , the higher is the rate of vibration, the faster is the conveyance of sound waves through this medium, A warm water atom and molecule exhibit high order vibration  

Hence, option A is correct