The following diagrams show the properties of waves: amplitude and wavelength.

Describe wave motion in terms of amplitude, wavelength, frequency and period.

How to use the wave equation to calculate the speed of a wave?

Describe a method for measuring the speed of sound waves in air.

Velocity = frequency × wavelength

v = f × λ

Example:

1. A wave has a frequency of 165 Hz and a wave length of 2 m. Calculate the speed of the wave.

2. A wave has a frequency of 10000 Hz and a wave length of 2 cm. Calculate the speed of the wave.

3. A wave has a speed of 500 m/s and a frequency of 200 Hz. Calculate the wavelength.

Describe wave motion in terms of amplitude, wavelength, frequency and period.

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