smithcenae20
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Will Give Brainliest and 25 Points
1. In what way does the horn's pitch change for the observer as the car gets closer, and why does that change happen?

2. When a horn is moving away from an observer the sound waves from it will pass by the observer ______________ (more or less), frequently, causing the pitch to ___________________ (get lower or higher).

Respuesta :

musiclover10045

This is the Doppler effect.

1. As the sound leaves the horn the sound waves are at first close to each other and as they move outwards they become further apart. The closer the sound waves are the louder the noise.

As the car gets the closer the sound waves get closer, so the horn becomes louder.

2. As the horn moves away, the sound waves become less frequent, causing the pitch to get lower.

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