언어 & 학위/IB1 Physics - Sound 1. SoundSound is a form of energy. Sound waves are produced by the vibration of an object placed in a medium.definition:https://youtu.be/24yESm63tSYhttps://youtu.be/gdGyvGPZ1G0 2. Echo A repeated sound that is caused by the reflection of sound waves from a surface.definition: https://youtu.be/y0TyDa8PepMecho reduction way: https://youtu.be/ULE8DnPy8OE 3. NoiseUnwanted backgound sounds are som.. 2024. 5. 20. 이전 1 다음