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IB Physics SL C.5.2 Doppler wavefront diagrams Question Bank

Practise IB Physics SL/HL C.5.2 by applying doppler wavefront diagrams concepts to exam-style physics questions.

Syllabus
First assessment 2025
Course
Physics SL
Level
SL

Exam points

  • identify the relevant physical quantity, model or diagram
  • apply the correct equation and units to the evidence
  • justify the result using conservation laws, fields or energy relationships

C.5.2—Doppler wavefront diagrams question 1

[Maximum number: 2]

This question is about the Doppler effect.

The diagram shows wavefronts in air produced by a stationary source S of sound.
The distance between successive wavefronts is equal to the wavelength of the sound.
The speed of sound is c.

Figure for Question C.5.2—Doppler wavefront diagrams question 1 — IB Physics SL

On the diagram, sketch three successive waveforts produced when S is moving to the left at a speed of 0.5 c.

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