On Fig. 8.1, sketch two cycles of a sound wave that has a shorter wavelengthand agreater amplitude. [2](ii) State two changes in the sound heard from this wave compared with the original wave.1. .......................................................................................................................................2. ...............................................................................................................................
Question
On Fig. 8.1, sketch two cycles of a sound wave that has a shorter wavelengthand agreater amplitude. 2 State two changes in the sound heard from this wave compared with the original wave.1. .......................................................................................................................................2. ...............................................................................................................................
Solution
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The first change in the sound heard from this wave compared with the original wave is that it will be higher in pitch. This is because a shorter wavelength corresponds to a higher frequency, which in turn results in a higher pitch of the sound.
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The second change is that the sound will be louder. This is because a greater amplitude corresponds to a higher intensity of the sound wave, resulting in a louder sound being heard.
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