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vibration or brownian motion
The rapid back and forth of air or other matter is the sounds vibration (vibration is the anwser).
A back-and-forth or reciprocating movement is known as an oscillation. An example would be the motion of a pendulum. Closely related words include flux, undulation, pulsation, cycle, vibration, alternation, and see-saw(ing).
The time required for a single vibration (back and forth motion).
it is a vibration :)
earthquakes
longitudinal vibration
A vibration.
vibration or brownian motion
The back and forth movement of an object is called undulation, more commonly referred to as swaying or rocking. An object's undulation is measured in cycles (e.g. the number of times an object moves back and forth) per unit time. Ex. the undulation of a pendulum (such as in a grandfather clock) is usually measured in cycles per second.
The rapid back and forth of air or other matter is the sounds vibration (vibration is the anwser).
if you mean where they rub sideways against eachother then that is called the transform movement.
vibration
A back-and-forth or reciprocating movement is known as an oscillation. An example would be the motion of a pendulum. Closely related words include flux, undulation, pulsation, cycle, vibration, alternation, and see-saw(ing).
The time required for a single vibration (back and forth motion).
Vibration
Vibration