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Physics · L2 · How Sonar Measures Distance With an Echo

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A ship sends a sound ping downward, times how long the echo takes to return, and uses that delay to work out how far away the ocean floor is.

by @openstemUpdated Physics
🚢 Ship sends a sound ping downwardPing travels through the water🌊 Ping reflects off the ocean floorEcho travels back up through the water📡 Ship detects the returning echoHow long did the round trip take?Ocean floor is closeOcean floor is far awayShort delayLong delay

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