You can picture a sound wave a lot like a Slinky wave . . . a
thicker, compressed blob moving along the path, with thinner,
stretched-out places before and after it.
The thicker parts of a sound wave, where the air is more dense,
are called compressions.
The thinner parts of a sound wave, where the air is less dense,
are called rarefactions.
Power is joules per second or J/s when work is measured in joules and time in seconds. The basic unit of power, 1 J/s is called a watt (W), named after James Watt who made important improvements to the steam engine. By definition, a watt is the consumption of one joule of energy per second.
I could tell you the energy if you can tell me the acceleration and height above earth's surface.
<span>In electricity, a potential difference is measured in volts.
Message me if you have any further questions!</span>