MEASURING WAVES

• -Adjust the bar so it touches the surface of the water

  -adjust the motor to produce low frequency wave

  -adjust the lamp until the pattern is seen clearly on the card underneath.

  -take a picture with a camera with a ruler in shot and count the distance between 10 waves

  -divide the length of the number of waves to give the wavelength

  -record a video with a stopwatch in shot and count the number of waves passing in a second

  -divide the number of waves counted by 10 to get the frequency

  use the equation wave speed = frequency times wavelength