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When a train passes over a bridge, the sound gets amplified due to the solid structure of the bridge reflecting and transmitting the vibrations created by the train. This amplifies the sound waves, making them seem louder to those nearby.

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Does the Doppler Effect explain why you hear a train whistle differently after it passes you than you do as it approaches you?

Yes, the Doppler Effect explains this phenomenon. As the train approaches, sound waves are compressed, leading to a higher frequency and a higher pitch. As the train passes, sound waves are stretched, resulting in a lower frequency and a lower pitch, which is why the whistle sounds different before and after the train passes.


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


What happens to the frequency of the sound as the train draws closer What do you hear?

As the train draws closer, the frequency of the sound you hear increases. This is due to the Doppler effect, where the perceived frequency of a sound source changes relative to an observer's position. The sound waves are compressed in front of the moving train and stretched behind it, affecting the pitch you hear.


You are standing near a railroad track and a train is moving toward you at 60 mph and blowing its horn What will you notice as the train moves past you?

You will first notice the sound of the horn getting louder as the train approaches, then as it passes, you will feel a rush of wind and hear a loud noise as it speeds by. The train may also create vibrations in the ground as it passes.


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

You would hear a change in pitch because of the Doppler effect. As the train moves towards you, the sound waves are compressed, resulting in a higher pitch. As the train moves away, the sound waves are stretched, resulting in a lower pitch.

Related Questions

Does the Doppler Effect explain why you hear a train whistle differently after it passes you than you do as it approaches you?

Yes, the Doppler Effect explains this phenomenon. As the train approaches, sound waves are compressed, leading to a higher frequency and a higher pitch. As the train passes, sound waves are stretched, resulting in a lower frequency and a lower pitch, which is why the whistle sounds different before and after the train passes.


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


What happens to the frequency of the sound as the train draws closer What do you hear?

As the train draws closer, the frequency of the sound you hear increases. This is due to the Doppler effect, where the perceived frequency of a sound source changes relative to an observer's position. The sound waves are compressed in front of the moving train and stretched behind it, affecting the pitch you hear.


You are standing near a railroad track and a train is moving toward you at 60 mph and blowing its horn What will you notice as the train moves past you?

You will first notice the sound of the horn getting louder as the train approaches, then as it passes, you will feel a rush of wind and hear a loud noise as it speeds by. The train may also create vibrations in the ground as it passes.


What does sound travel through the quickest?

the denser the medium the faster the sound of speed. it is experimentally proved. for example if a train is appraching and you cant hear the sound you can hear it if you put your head (ear) on the railtrack. but do move quickly if you see the train approaching.....


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.


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

You would hear a change in pitch because of the Doppler effect. As the train moves towards you, the sound waves are compressed, resulting in a higher pitch. As the train moves away, the sound waves are stretched, resulting in a lower pitch.


What does sounds travel through quickest?

the denser the medium the faster the sound of speed. it is experimentally proved. for example if a train is appraching and you cant hear the sound you can hear it if you put your head (ear) on the railtrack. but do move quickly if you see the train approaching.....


Why do I hear train horns at night?

You may hear train horns at night because trains are required to sound their horns at railroad crossings to alert drivers and pedestrians of their presence for safety reasons.


When a car or train passes you by and you hear the pitch of the engine appear to change as it passes you are hearing an example of?

the Doppler effect. This effect describes how the frequency of a sound wave appears to change for an observer when the source of the sound is moving relative to the observer. As the source moves towards the observer, the sound waves are compressed, resulting in a higher frequency (higher pitch), and as it moves away, the waves are stretched, resulting in a lower frequency (lower pitch).