standing waveWhy do you think they are called standing waves

1.Because the standing waves remain there wave forms in a constant position,looks like something standing there stationary.
2.They are often formed as a result of interference between two waves travelling in opposite directions.

A standing wave, also known as a stationary wave, is a wave that remains in a constant position. This phenomenon can occur because the medium is moving in the opposite direction to the wave, or it can...

1.Because the standing waves remain there wave forms in a constant position,looks like something standing there stationary.
2.They are often formed as a result of interference between two waves travelling in opposite directions.
most importantly, these two waves have the same frequency.

standing waves 驻波
你给的东西不太全，为什么叫驻波？应该还有个图形之类的东西吧。
驻波之所以叫驻波是因为驻波的波形图不是时间函数，是固定不变的。
驻波是怎样生成的。
频率和振幅均相同、振动方向一致、传播方向相反的两列波叠加后形成的波。波在介质中传播时其波形不断向前推进，故称行波；上述两列波叠加后波形并不向前推进，故称驻波。例如，如图所示，一弦线的一...