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St. Mary's U. Astronomy and Physics

 

 


Doppler Effect
St. Mary's Physics Online

 

D.  Doppler Effect – variation in the observed frequency of a wave when there is relative motion between the source of the wave and the receiver


 

Doppler Effect V = 14 m/s
(B. Barrett)

 

Doppler Effect V = 18 m/s
(B. Barrett)

 

 

 

Stationary Ambulance

 

 

 

 

Which way is this ambulance moving?

 

 

 

 

To the left

 

 

 

The Doppler Effect  II
Colorado University

 

 

 

Jet breaking speed of sound
Cambridge U.

 

 

"A "sonic boom"

is heard when a

plane exceeds

the speed of sound. "

 

 

 

 

Bullwhip_Cracking.mov

 

Did you know .....

 

The crack of a whip is the sound of the
tip breaking the speed of sound.



 

 

The Doppler Effect
Michael Fowler -  Flashlets

 

 

 



"Which way is the

source of this wave

moving?"

 

 

 

 

 

"To the right, where

the frequency

is higher"

 

 

 

 

Doppler Effect - Mouse
St. Mary's HS Physics

 

 

Radar Guns & Waves
St. Mary's HS Physics

 

 

 

 

 

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