level: Sonar and Seismic Waves
Questions and Answers List
level questions: Sonar and Seismic Waves
| Question | Answer |
|---|---|
| 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] |