A ripple tank can be used to measure and calculate frequency, wavelength and the speed of waves on the water's surface. A ripple tank is a transparent shallow tray of water with a light shining down through it onto a white card below. The light allows you to see the motion of the ripples created on the water's surface more easily. Ripples can be made by hand but to generate regular ripples it is better to use a motor.
To measure the frequency, wavelength and speed of waves in a ripple tank.
In this example 12 waves have been measured.
|Length of 12 waves (cm)||Wavelength (cm)||Number of waves in 10 seconds||Frequency (Hz)||Wave speed (cm/s)|
|Electrical components near water||Shock and/or damage to components||Secure electrical components before adding water, taking care not to splash|