IGCSE /Grade 10
Science MCQ Based On Echo
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IGCSE Grade 10 Science Echo
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Repeated sound
Echo is the reflected sound of original sound
heart echo
Transesophageal echocardiogram Transthoracic echocardiogram
Echo is the reflected sound
It should not be more than 20m
repeated sound
a physiological process for locating distant or invisible objects (such as prey) by sound waves reflected
If an object is in the path of the sound pulse, the sound bounces off the object and returns an “echo” to the sonar transducer.
By knowing the speed of sound and measuring the time it takes to hear the echo, you can calculate the distance of the object.
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