资讯

As waves travel, they set up patterns of disturbance. The amplitude of a wave is its maximum disturbance from rest (its undisturbed position). Key fact It is important to note that the amplitude ...
1kHz = 1,000Hz\) \(1MHz = 1,000,000Hz\) The speed (or sometimes you might see it called velocity) of a wave (\(v\)) is how far the wave travels in a certain time. Wave speed is measured in metres ...