Physics practicals

• What is the purpose of a ripple tank?

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

  A vibrating bar connected to a power pack
• What is placed below the ripple tank to observe waves?

  A sheet of white paper
• How is the image of the waves produced on the paper?

  By shining light through the water
• What are the steps to measure the wavelength in a ripple tank?

  1. Place a ruler on the paper.
  2. Freeze the image of the waves.
  3. Measure the distance of 10 wavelengths.
  4. Divide by 10 to find one wavelength.
• How do you convert 26 centimeters to meters?

  By dividing by 100
• How is frequency defined in the context of waves?

  • Frequency is the number of waves passing a point each second.
• How can you accurately measure frequency in a ripple tank?

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

  • Wave speed = frequency × wavelength
• What is another method to determine wave speed in a ripple tank?

  • Measure the time for a wave to travel the length of the tank.
  • Calculate speed by dividing distance by time.
• Why might different methods yield slightly different results for wave speed?

  Due to measurement errors in timing
• What additional resource is mentioned for more questions on the practical?

  • A vision workbook linked in the video