rp8: ripple tank

• 1. record waves on a phone
  2. wavelength: using the ruler measure the distance between 1 wave & 10 waves further & divide this by 10
  3. frequency: place a timer next to the paper & count the number of waves passing a point in 10 seconds & divide by 10
  4. wavespeed = frequency x wavelength
  5. or wavespeed: select a wave & measure the time it takes to move the length of the tank, speed = distance / time

  
• what is frequency?

  number of oscillations/waves per second