AHL Topic 9.5 The Doppler Effect

Jeffrey Piggott
Slide Set by Jeffrey Piggott, updated more than 1 year ago
Jeffrey Piggott
Created by Jeffrey Piggott about 5 years ago
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Slideshow for IB Physics Doppler Effect Lesson

Resource summary

Slide 1

    AHL 9.5 Doppler Effect Lesson 1 [slide 1]
    Topic 9.5 is an extension of SL Core Topic 4. Essential Idea: The Doppler effect describes the phenomenon of wavelength/frequency shift when relative motion occurs between a source of waves & an observer. Nature of science - Technology: Although originally based on physical observations of the pitch of fast moving sources of sound, the Doppler effect has an important role in many different areas such as evidence for the expansion of the universe and generating images used in weather reports and in medicine scans.

Slide 2

    AHL 9.5 The Doppler Effect [slide 2]
    Understandings: • The Doppler effect for sound waves and light waves Applications and skills: • Sketching and interpreting the Doppler effect when there is relative motion between source and observer. • Describing situations where the Doppler effect can be utilized. • Solving problems involving the change in frequency or wavelength observed due to the Doppler effect to determine the velocity of the source/observer.

Slide 3

    AHL 9.5 The Doppler Effect [slide 3]
    Data Booklet Equations: • Moving source: f ’ = f [ v / (v  ± uS) ] • Moving observer: f ’ = f [ (v  ± uO) / v ] • ∆ f / f = ∆ lambda/ lambda  = v / c

Slide 4

    Caption: : Slound Waves for Stationary and Moving Sources of Sound
    AHL 9.5 The Doppler Effect [slide 4]
    CLICK ON THIS LINK TO EXPLORE THE DOPPLER EFFECT.THIS TEXT IS A LINK TO ANOTHER  DOPPLER EFFECT SIM.ONE MORE LINK TO A DOPPLER EFFECT SIMULATION.PLAY WITH AT LEAST TWO OF THE SIMS AND SEE WHAT YOU CAN LEARN ABOUT THE DOPPLER EFFECT. RECORD SOME SHORT NOTES ABOUT YOUR FINDINGS IN YOUR PHYSICS NOTEBOOK.

Slide 5

    AHL 9.5 The Doppler Effect [slide 5]
    Think carefully about what you have learned from exploring the simulation (link on slide 4), then follow the links and answer the Quiz questions on the right of this slide.. NOTE:1. You must submit your answers to the questions by 8.30 a.m. Monday 11/07/2016. 2. You can have 2 attempts to get each question correct, by completing the quiz a second time.  
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