Measuring waves in a solid

• What is one way in which energy may be transferred between stores?

  Waves
• What types of waves transfer energy but not matter?

  Mechanical and electromagnetic waves
• What are the two main types of waves discussed?

  • Longitudinal waves
  • Transverse waves
• What is the aim of the experiment described in the study material?

  To measure the frequency, wavelength, and speed of waves in a metal rod
• What is the method for measuring waves in a solid?

  1. Hold a metal rod at its middle point.
  2. Hit one end of the rod with a hammer.
  3. Use a smartphone app to measure frequency near the end of the rod.
  4. Record the peak frequency.
  5. Measure and record the length of the rod.
  6. Calculate the speed of sound waves using frequency and wavelength.
• How do you calculate the speed of sound waves in the rod?

  Using the frequency and wavelength recorded
• What should be included in the results table for the experiment?

  • Frequency (Hz)
  • Length of rod (m)
  • Wavelength (m)
  • Wavespeed (m/s)
• What should be stated in the analysis of the experiment?

  The frequency, wavelength, and speed of waves measured in the solid
• What are the hazards and control measures in the experiment?

  Hazards:

  • Dropping rod or hammer

  Control Measures:

  • Take care to hold equipment carefully
• What is a consequence of dropping the rod or hammer during the experiment?

  Injury from falling objects
• What is a control measure to prevent injury from dropping the rod or hammer?

  Take care to hold equipment carefully