As the ambulance moves closer to you, the air molecules get compressed together. The wavelength of the sound (these pressure waves) decreases, and the frequency increases. That results in a higher sound pitch. After the ambulance passes you, that process reverses.
Explanation:
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comment u nalang kong mali po maitindihan ko naman po
Answers & Comments
Answer:
As the ambulance moves closer to you, the air molecules get compressed together. The wavelength of the sound (these pressure waves) decreases, and the frequency increases. That results in a higher sound pitch. After the ambulance passes you, that process reverses.
Explanation:
i hope it help
comment u nalang kong mali po maitindihan ko naman po