ripple tank

    Cards (16)

    • What is the purpose of a ripple tank?
      To observe features of water waves
    • What equipment is used in a ripple tank?
      A shallow tray of water and a vibrating bar
    • How is the vibrating bar powered in a ripple tank?
      It is connected to a power pack
    • What happens when the bar vibrates in the ripple tank?
      It creates waves across the water surface
    • How is the image of the waves produced in the ripple tank?
      Light shines through the water onto paper
    • What is the easiest way to measure the waves in a ripple tank?
      Record the waves using a mobile phone
    • How do you measure the wavelength of the waves?
      By placing a ruler on the paper
    • What is the method to find one wavelength from ten wavelengths?
      Divide the total distance by 10
    • If 10 wavelengths equal 26 centimeters, what is one wavelength?
      0.026 meters0.026 \text{ meters}
    • 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
    • What is the frequency if 24 waves pass in 10 seconds?
      2.4 Hertz2.4 \text{ Hertz}
    • How do you determine the speed of the waves?
      Use the wave equation: speed = frequency × wavelength
    • What is the wave speed if frequency is 2.4 Hertz and wavelength is 0.026 meters0.026 \text{ meters}?

      0.0624 meters per second0.0624 \text{ meters per second}
    • What is another method to determine wave speed?
      Measure time for a wave to travel the tank
    • Why might results differ using two methods to measure wave speed?
      Due to measurement errors in timing