Question

using the diagram and words fill in the blanks to explain the doppler effect. sounds moving toward a person - waves are at a higher frequency, so pitch appears to sound moving away from a person waves are at a lower frequency, so pitch appears to

Explanation:

The Doppler Effect describes how the frequency of waves (like sound) changes relative to an observer. When a sound source (e.g., ambulance siren) moves toward an observer, the waves are compressed (higher frequency), making the pitch seem higher. When it moves away, the waves are stretched (lower frequency), so the pitch seems lower.

Answer:

Sounds moving toward a person – Waves are at a higher frequency, so pitch appears to increase.
Sound moving away from a person – Waves are at a lower frequency, so pitch appears to decrease.