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High frequency sound waves hit objects which absorb or reflect the sound waves and then the waves bounce off the objects that reflect the signal (for example rocks on the ocean floor) and return to a sonar receiver. The difference is visible since there will be patches of unreturned signal in certain ares where the signal was absorbed (for example if the waves hit a whale, the blubber may very effectively absorb the signal leaving a blank patch of sonar screen in the shape of a whale)
What else can I help you with?
What can Differences in ocean-surface height can be measured by?
Sonar
Sonar is used to find?
Sonar (SOund NAvigation and Ranging) is used to find objects. Sonar is used to find ships, submarines, mines, and other objects in the Navy. Sonar is used in Medicine to find unusual tumors, organs, and cells. Sonar is used in Geology to find minerals, oil, rock formationsn, and water .
Can sonar use in periscope depth?
Yes sonar can be used at periscope depth. Surface ships also have sonar arrays on them. They are usually used to detect submarines.
What is used to map mid ocean ridge?
sonar,is used to map mid-ocean ridges:]
Why is sonar useful when fishing?
Sonar can be used to locate large shoals of fish.
What is one event where sonar was used in World War 2?
Sonar was used to detect and hunt submarines in WW2
What is a sonar used for?
Sonar is used to detect other vessels or ships/submarines through a tube-like device> Andrea
Sonar is used to?
sonar is a device used underwater for locating submerged objects and for submarine communication by means of sound waves.
What is sonar which research vessel first used sonar to map the mid-Atlantic ridge?
the Challenger
What is sonar to people?
Most people do not hear the sonar signals used by animals, such as bats or dolphins.
When was sonar first used?
1337
What sonar is used in a sentence?
love
