Does frequency increase, decrease or stay the same as an object moves away from you?

Does frequency increase, decrease or stay the same as an object moves away from you?Does frequency increase, decrease or stay the same as an object moves away from you?
the further away it moves the lower the frequency is the closer it is the higher it isDoes frequency increase, decrease or stay the same as an object moves away from you?
think about it this way: when you're standing at the side of a road and you hear a car coming towards you it sounds high pitched because the frequency is compressed. at the moment it passes you, you can hear it as it would normally sound, and when it moves away from you it sounds lower. therefore as an object moves away from you the frequency is stretched out or decreases.


this is also known as a doppler shift:


http://www.astro.ucla.edu/~wright/dopple鈥?/a>


http://zebu.uoregon.edu/~soper/Light/dop鈥?/a>
Towards you, it increases for you.


Away from you, it decreases for you.

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