Ripple tank practical

• What is the purpose of a ripple tank?

  To observe the features of water waves
• What equipment is used in a ripple tank setup?

  A shallow tray of water and a vibrating bar
• How are waves created in a ripple tank?

  By a vibrating bar connected to a power pack
• What does the white paper below the ripple tank do?

  It displays an image of the waves
• How can you measure the wavelength of water waves?

  By freezing the image and measuring with a ruler
• How do you find one wavelength from the total distance of 10 wavelengths?

  Divide the total distance by 10
• What is the calculated wavelength in meters?

  $0.026 \text{ m}$
• How is frequency defined in the context of waves?

  Number of waves passing a point each second
• What is the more accurate method to find frequency?

  Count waves in 10 seconds, then divide by 10
• What is the wave speed equation?

  Wave speed = frequency × wavelength
• What is another method to determine wave speed?

  Measure time for a wave to travel the tank
• Why might results differ using different methods to measure wave speed?

  Due to measurement errors in timing
• Where can you find more questions on this practical?

  In the vision workbook linked above