Trough
There is no sound pressure, there is atmospheric pressure of 101.325 kPa equivalent to 760 mmHg (torr), 29.92 inHg or 14.696 PSI. The sound pressure is the local pressure deviation from the ambient atmospheric pressure caused by a sound wave.
The instantaneous sound pressure is the deviation from the local ambient pressure po caused by a sound wave at a given location and given instant in time. The effective sound pressure is the root mean square of the instantaneous sound pressure over a given interval of time (or space). Total pressure is given by: p-total = po + p-osc where: po = local ambient atmospheric (air) pressure, p-osc = sound pressure deviation. The standard atmosphere is a unit of pressure and is defined as being equal to po = 101325 Pa. Sound pressure level (SPL) or sound level is a logarithmic measure of the effective sound pressure of a sound relative to a reference value. It is measured in decibels (dB) above a standard reference level. The commonly used reference sound pressure level in air of 0 dB is equivalent to the sound pressure of p = 20 µPa RMS, which is usually considered the threshold of human hearing at 1 kHz. The threshold of of pain has a level of about 137.5 dB equivalent to a sound pressure of 150 Pa.
Noise is irregular vibration occurs when the body to do the sound. From the physiological point of view, any interference with people's rest, study and work the sound, that is unwanted sound, collectively referred to as noise. When the noise on people and environment of the adverse effects on the formation of noise pollution.
Atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. It is defined as the force per unit area exerted against a surface by the weight of air above that surface. The average atmospheric pressure, at sea level, is about 1 atmosphere (atm) = 101325 pascals, or 101.3 kPa (kilopascals). Don't say intensity of air pressure. Say strength of air pressure, because intensity is an "energy quantity" and pressure is a "field quantity. Our eardrums are moved only by the sound pressure. Scroll down to related links "Conversion of sound units (levels)".
True
density
convections
The speed of sound does not change with atmospheric pressure. The speed of sound changes with temperature.
The lowest point on a Sound or light wave is called a trough.
The high point on a sound waveform is the point of maximum pressure, the pressure peak.
long island sound
Chemical energy is turned into heat, light and pressure(sound)
ocean waves have to do with water and sound waves have to do with sound
blah, blah, blah, thats it. [try to sound logical]
Long Island Sound at sea level is the lowest point in Connecticut.
That completely depends on how far you are from the point where the reflection occurs. (That's the whole principle of SONAR.)
They can be. In air and other fluids sound is transmitted by variations in pressure. When those variations impinge on the eardrums (in our ears) they make them vibrate. If we were able to monitor the horizontal position of a point on one eardrum through time (assuming that the person in possession of the eardrum was standing) then we would see a complicated wave form with crests and troughs.