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Properties of wave

The frequency :is the number of complete oscillations of the wave in one second and it has the unit hertz (Hz). It applies to progressive or stationery waves.

Let's examine the guitar string. The string went through three cycles in 1/100th of a send. In one second, it would go through 300 cycles. It frequency of vibrate is 300 cycles per second or 300 Hz. One Hz is number of cycle, or oscillation, per second.

                                   ƒ = 1/ T

The Velocity : A progressive wave will move forward a distance equal to its wave length each oscillation. If a wave has a frequency of 10 Hz it would move 10 wave lengths forward in one second. If wave length is 2m the traveled by the wave in 1 second would be 10 x 2 = 20m. The distance traveled per second is known as velocity (v) of the wave m/s. Therefore, for all traveling wave.

                                v = ƒ λ

Amplitude (a): of the wave is the maximum displacement of particles from their rest position (take note that the distance from the peak to a trough is twice the amplitude)

The Amplitude increases if the size of the disturbance of the source increase. the larger the amplitude of the wave the greater greater the transfer of energy by it.
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