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The students should understand nodes and antinodes, relative amplitude and phase difference of points along a standing wave


Here are experiments our science specialists have selected to support this IB* topic.

Standing Waves on a String

Experiment #3 from Advanced Physics with Vernier — Beyond Mechanics

In this experiment, you will

  • Adjust the frequency of the driver so that the string vibrates in the fundamental mode.
  • Set up other standing wave patterns on the string.
  • Relate the frequency of the various harmonics to that of the fundamental mode of vibration.
  • Describe the terms amplitude, frequency, wavelength, node, and antinode as they relate to vibrating strings.
  • Determine the velocity of waves in the string.
  • Relate wave velocity to the tension of the string and its linear density.

Educational Standard
International Baccalaureate (IB) 2025
C Wave behaviour
C.4 Standing waves and resonance
Standard level and higher level

* The IB Diploma Program is an official program of the International Baccalaureate Organization (IBO) which authorizes schools to offer it. The material available here has been developed independently of the IBO and is not endorsed by it.