There are a few different ways you could measure the speed of sound in water and air. You could record the amount of time it takes a sound to be heard from the source to the destination for example.
No, it is not.
It will slow - sound moves faster in water than in air.
Speed of sound in water is faster than in air. Speed of sound in steel is c = 5930 m/s. That is faster than in air and in water. Speed of sound in water is c = 1480 m/s. It is affected by the oceanographic variables of temperature, salinity, and pressure. Speed of sound in air is c = 343 m/s at 20°C = 68°F. The speed of sound changes clearly with temperature, a little bit with humidity - but not with air pressure (atmospheric pressure).
Sound speeds up when it goes into water from air. Sound travels much faster in water than in air.
Much of the sound will be reflected (the amount reflected will depend on the angle of incidence). If the angle of incidence is low enough, the sound will be completely reflected. The portion which is transmitted into the water, if any, will be refracted because of the difference in the speed of sound between air and water. Since the speed of sound in water is greater than the speed of sound in air, the sound will be refracted toward the surface of the water. Note that this is the opposite of what happens with light which has a slower speed in water than in air and is refracted away from the surface of the water.
No why would the speed of sound will stay the same
The speed of sound in water is greater than the speed of sound in air . For example, at 20 °C and 1 ATM pressure, the speed of sound in air is 343 m/s, and its speed in water is 1482 m/s. In general, the speed of sound in a medium = (bulk modulus of the medium/ its density)^0.5 where the bulk modulus indicates how compressible the medium is; the greater the bulk modulus, the more incompressible the medium is. So, although water has a density much greater than that of air, water is also much more incompressible than air. When you solve for the speed of sound for both water and air using the above formula, you will find that it is greater in water.
because water is a batter sound conductor than air
The speed of sound in a solid is faster than the speed of sound in air.
The speed of sound in steel is faster than the speed of sound in air.
No. The denser the material, the faster sound moves through it.
Roughly speaking, light moves about a million times faster than sound in air.