The Doppler Effect

Directions: Answer the following questions in complete sentences. A diagram can be substituted where appropriate.

1) Explain what the Doppler shift is in your own words.

2) If a sound wave is approaching an observer, what audible change would you expect as a result of the Doppler Effect?

3) If a light wave is approaching an observer, what visual change would you expect as a result of the Doppler Effect?

4) How does police radar work?

5) Based on what you have learned, what measurements can be made by Doppler radar weather instruments?

6) How do radio astronomers use the Doppler Shift?