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level: Sonar and Seismic Waves

Questions and Answers List

level questions: Sonar and Seismic Waves

QuestionAnswer
What can Happen when a Wave hits a Boundary?1. Can be Reflected if it can not go Through the Material 2. Can be Refracted which will Change the Speed and Wavelength 3. May be Absorbed.
How can Waves be Used to see Things we find Difficulty seeing?-You can Find out the Structure of the Object that you can not See by seeing if the Waves can be Detected - is Absorbed - and if the Speed has Changed / Direction has Changed.
How can Sonar be Used to see Depths?-Sonar uses Sound Waves to find out the Distance of 2 Points -Sound Waves are Sent and Tracked by a Transmitter and a Receiver. -When the Sound Waves has Hit the Boundary, they will go Back towards the Boat. -And Timing how long it Takes for the Wave to Come Back will give you the Distance [Distance = Speed x Time]