The sound "weeeeooo" on an ambulance is the siren. It is used to alert other drivers and pedestrians that the ambulance is approaching and to clear a path for the vehicle. The siren can be heard from a greater distance than the vehicle's horn, making it more effective in warning people to move out of the way.
18 янв. 2023 г.
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7 мар. 2019 г. · One of the common sounds you hear on the streets is a siren: a loud, high noise that comes from police cars, fire trucks, or ambulances. It ... |
A siren is a warning device which makes a long, loud noise. Most fire engines, ambulances, and police cars have sirens. |
The sound changes from a higher pitch to a lower pitch based on where you are standing. This change in pitch is called the Doppler effect. |
24 мар. 2020 г. · The wailing sound that rises and descends slowly in pitch is a siren sound. Other sounds can be described as a klaxon sound, or a loud honking. |
What do Ambulance sirens sound like? Standard ambulance sirens use wail and yelp,on the ambulance, but due to different manufacturers, other tones may be added ... |
Behind the ambulance there are fewer vibrations per second, and a lower sound is heard. This change in pitch is known as the Doppler Effect. When a vehicle ... |
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