How does sonar technology measure the depth of the ocean floor?

Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
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Question 2
How does sonar technology measure the depth of the ocean floor?
0:00/0:22
A
B
C «»
с
Speed: 1x
The device lowers a cord from a ship to the bottom of the ocean and records the cord's
length.
The device sends sound signals to the ocean floor and records the time it takes for each
signal to return.
The device receives electromagnetic energy that is emitted by cooling oceanic crust.
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Transcribed Image Text:MULTIPLE CHOICE Question 2 How does sonar technology measure the depth of the ocean floor? 0:00/0:22 A B C «» с Speed: 1x The device lowers a cord from a ship to the bottom of the ocean and records the cord's length. The device sends sound signals to the ocean floor and records the time it takes for each signal to return. The device receives electromagnetic energy that is emitted by cooling oceanic crust. 1 Points Paused
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