The changing pitch of a police car's siren as it moves by you is an example of _____________.

Choose one answer.

a. the Doppler effect

b. intensity

c. resonance

I had C writtin down?

Question

The changing pitch of a police car's siren as it moves by you is an example of _____________.

Choose one answer.

a. the Doppler effect

b. intensity

c. resonance

I had C writtin down?

anonymous · Answer

no. if it drives away from you, the tone is lower than when it approaches. this is called the doppler effect. also works for light (at higher speeds). so A is right

geometry_hater · Answer

No its suppose to be the Doppler effect - is the change in frequency of a wave for an observer moving relative to the source of the wave.