Beth plays the lowest note on her ukelele, a middle C. Penny plays a middle C at the same volume on a harp. In this instance, the difference in sound between the two instruments represents a difference in:

Question

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The pitch (frequency) and volume (amplitude) of the two instruments are the same, but the ukelele and harp have different timbres due to the differences in the harmonic content of their sounds. The ukelele produces a more muted and percussive sound compared to the rich and sustained sound of the harp, which is due to the different sizes and shapes of their bodies, as well as the materials used to make their strings. Therefore, the difference in sound between the two instruments represents a difference in timbre.

Beth Plays the Lowest Note on Her Ukelele, a Middle