Question

why does an ambulance siren sounds different whennit cones closer
​

Answer 1

Hi buddy

Here is your answer

When the ambulance is approaching you the siren has a higher pitch than when it is moving away. The pitch of a sound wave tells us how often the waves encounter the listener. As the source of the sound waves comes closer, the waves bunch up close together. When it is moving away, the waves are stretched out

Answer 2

Answer:

• When the ambulance is approaching you the siren has a higher pitch than when it is moving away. The pitch of a sound wave tells us how often the waves encounter the listener. As the source of the sound waves comes closer, the waves bunch up close together. When it is moving away, the waves are stretched out.