A Teaching Assistant (TA) earns an average salary of $21,548 per year. A skill in Childhood Education is associated with high pay for this job.
Medical Definition of place theory. : a theory in physiology: the perception of pitch results from the ability of sounds of different pitch to stimulate different areas of the organ of Cortiâcompare telephone theory.
Pitch is a term used to refer to the height or lowness of a sound. The pitch of a sound is determined by the frequency of the sound waves. A higher pitch has a higher frequency. The noted called A that is the first A above middle C is often used as a note for tuning instruments to match each other, and has the frequency of 440Hz.