20 points! what properties of sound determine the pitch of sound? how is this affected by motion of the sound source? be specific.

The frequency of the sound determines the pitch .The higher the frequency , the more high pitched it will sound. if the frequency is very low, it will sound very low pitched.

           This is affected by motion of a sound source because if the sound source moves faster, this makes the frequency higher( since frequency is the number of waves/revolutions/whatever per second)

So , if for example , the sound source makes 4 vibrations or whatever in  a second , it will have a frequency of 4Hz ,   but if a sound source makes 8 vibrations or whatever in a   second , it will have a frequency of 8Hz . And since pitch is determined by frequency , the sound pitch with a frequency of  8Hz will have a higher pitch than sound source with a frequency of 4Hz.

The pitch of a sound is determined by its frequency and its effect on the wave. This is known as the Doppler Effect. The pitch of a sound is related to the frequency of the sound wave.

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