RP: measuring waves in a ripple tank

Cards (14)

  • What is one way in which energy may be transferred between stores?
    Waves
  • What types of waves transfer energy but not matter?
    Both mechanical and electromagnetic waves
  • What is a ripple tank used for?
    • To measure and calculate frequency, wavelength, and speed of waves
    • It is a transparent shallow tray of water
    • Light shines through to visualize ripples
  • How can regular ripples be generated in a ripple tank?
    By using a motor
  • What is the aim of the ripple tank experiment?
    To measure the frequency, wavelength, and speed of waves
  • What are the steps to set up a ripple tank for the experiment?
    1. Set up the ripple tank with about 5 cm depth of water
    2. Adjust the height of the wooden rod to touch the water surface
    3. Switch on the lamp and motor for low frequency waves
  • How do you measure the wavelength in a ripple tank experiment?
    Measure the length of 10 waves and divide by 10
  • What is a practical method to record wavelength in a ripple tank?
    Take a photograph of the waves with a ruler across them and measure from the still picture
  • How do you calculate the frequency of waves in the ripple tank experiment?
    Count the number of waves passing a point in ten seconds and divide by ten
  • What is the formula to calculate wave speed?
    Wave speed = frequency × wavelength
  • What should be included in the results table for the ripple tank experiment?
    • Length of 12 waves (cm)
    • Wavelength (cm)
    • Number of waves in 10 seconds
    • Frequency (Hz)
    • Wave speed (cm/s)
  • What is a hazard associated with electrical components near water in the ripple tank experiment?
    Shock and damage to components
  • What control measures should be taken to prevent hazards in the ripple tank experiment?
    Secure electrical components before adding water and avoid splashing
  • What are the key components of the ripple tank experiment setup?
    • Ripple tank (transparent shallow tray)
    • Water (about 5 cm depth)
    • Wooden rod (to create ripples)
    • Lamp (to illuminate the tank)
    • Motor (to generate regular ripples)