Explain what is meant by the Doppler Effect. Explain one real-world application of the Doppler Effect.

2.The Doppler Effect explains why you hear a train whistle differently after it passes you than you do as it approaches you.

True or false ?

Question

Explain what is meant by the Doppler Effect. Explain one real-world application of the Doppler Effect. 
  
2.The Doppler Effect explains why you hear a train whistle differently after it passes you than you do as it approaches you. 
  
True or false ?

anonymous · Answer

The doppler effect is when a moving object produces a sound with a fairly constant frequency and the wavelength in front of the object is bunched up producing a highpitched sound while the wavelength behind the object is stretched out producing a lower pitched sound

anonymous · Answer

can you use that information to answer the rest of the questions?

anonymous · Answer

yea.. but remember doppler shift also takes place if the source is stationary and the listener was moving..

unklerhaukus · Answer

http://www.lon-capa.org/~mmp/applist/doppler/d.htm