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You hear the train whistle. Hear is a verb with present, past and future tense. You hear today, heard yesterday. Also, my hearing is very good.

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15y ago

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What happens to the sound of a train whistle as a train approaches and passes you?

This is known as the Doppler effect. As the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher. When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. If the train were not moving at all, the pitch you would hear from the whistle would be somewhere between the high and low pitches you hear when the train is moving.


What happens to sound of a train whistle as a train approaches and passes you?

This is known as the Doppler effect. As the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher. When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. If the train were not moving at all, the pitch you would hear from the whistle would be somewhere between the high and low pitches you hear when the train is moving.


What happens to the sound of a train whistle as the train approaches and then passes?

This is known as the Doppler effect. As the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher. When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. If the train were not moving at all, the pitch you would hear from the whistle would be somewhere between the high and low pitches you hear when the train is moving.Read more: http://wiki.answers.com/Why_is_the_pitch_of_a_train's_whistle_higher_as_the_train_approaches_and_loweras_it_moves_away#ixzz1DToTuS3j


A train whistle sounded in the distance is train a noun?

Yes. 'Train whistle' is a compound noun, which means that both 'train' and 'whistle' are nouns individually but here they work together. The word 'train' is applied to 'whistle' in the place of an adjective, that is, a word that describes the type of whistle. But have you ever heard a wolf whistle? Many compound nouns eventually run together, like handbook or cupboard, and maybe one day, wolfwhistle.


Why does a train whistle letter q at crossings?

Here comes the Queen.


Why is the pitch of a train's whistle higher as the train approaches and loweras it moves away?

This is known as the Doppler effect. As the train approaches you, the wavelength of the sound waves it emits are compressed, and therefore the whistle sounds higher. When the train is moving away, the wavelengths are extended, causing the whistle to sound lower. If the train were not moving at all, the pitch you would hear from the whistle would be somewhere between the high and low pitches you hear when the train is moving.


Who sings the song about the train where you can hear the whistle blowing in the song some of the words are you don't have to ride this train?

I think its the quad city djs or the 69boyz


When does an observer at a railroad crossing hear the lowest frequency of a trains whistle?

An observer at a railroad crossing hears the lowest frequency of a train's whistle when the train is approaching. As the train moves towards the observer, the sound waves are compressed, resulting in a higher perceived frequency.


What is the best frequency to control a dog?

There is no best frequency. If you train a dog correctly any frequency the dog can hear will control it. Your voice, whistle, 'silent' whistle. All are acceptable.


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

Yes, you would hear a change in pitch. As the train approaches you, the pitch of the whistle would sound higher because the sound waves are compressed. As the train moves away from you, the pitch would sound lower as the sound waves are stretched out. This is known as the Doppler effect.


When does an observer at the crossing hear the lowest frequency of the trains whistle?

The observer at the crossing hears the lowest frequency of the train’s whistle when the train is moving away from them. This is due to the Doppler effect, where the pitch of the sound decreases as the source moves away from the observer.


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

Yes, you would hear a change in pitch as you move towards or away from the source of the sound. This is due to the Doppler effect, where the frequency of the sound waves changes as the distance between the source and the observer changes.