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Q: When a train is approaching and you hear the change in pitch of the whistle what is this caused by?
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What causes the change in pitch of an approaching train whistle?

sound is wavelengths, and wavelengths get compressed when coming to you (and stretched when going away). the closer the wavelengths, the higher the pitch!


Would you hear a change in pitch if you are moving on a train and the whistle blows?

The train's whistle can change in pitch over time.


Why would you hear a change in pitch if you are on a moving train and the train whistle blows?

but crack


High pitch whistle or a drum?

whistle


Is a whistle a low pitch or high pitch?

A whistle is a High Pitch because its really loud and not really low.


Does wind affect the pitch of a whistle?

the pitch doesnt actually change but it might sound quieter to you because the sound it being blown away


Would you hear a change in pitch if you are on a moving train and the train whistle blows?

Since you are also on the moving train, the pitch should remain constant.


How do you whistle without lips?

You do not even need your lips to whistle. They actually produce poorer quality pitches than if you don't use your lips. You use your tongue and arc it up/down to change the pitch of the whistle and push a tight hole of air through your teeth.


What causes a high pitch whistle on GMC Jimmy?

What cause a whistle song on my gmc jimmy


How do you write the sound a whistle makes?

The sound a whistle makes is often described as "whoo" or "wee" depending on the pitch and intensity of the sound.


What kind of pitch does a whistle make?

it depends on the length


Why does a whistle makes a high sound?

A whistle makes a high sound because of the short length of the whistle's tube, which amplifies high-frequency sounds. When air is blown into the whistle and vibrates at a high frequency, it produces a high-pitched sound.