Announcements Homework will be posted online – You must print, complete and submit by Tuesday Pick up your pop quiz Exam date posted [3/2]

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Presentation transcript:

Announcements Homework will be posted online – You must print, complete and submit by Tuesday Pick up your pop quiz Exam date posted [3/2]

Which Way Did That Thing Go? 5.1.5 Doppler Effect and Sonic Boom

Really Cool Doppler Effect Video – The Adlers https://www.youtube.com/watch?v=Djz_rtnXSfY Really Cool Doppler Effect Video – The Adlers

Phenomenon #5 – Doppler Effect A source sends out waves in all directions with the same frequency and wavelength. How the wave is perceived by an observer depends on RELATIVE MOTION of the source and/or observer.

Phenomenon #5 – Doppler Effect Same frame of reference (no relative motion) FREQ. OBSERVED (FOBS) = SOURCE FREQ.(FSOURCE) A B

Phenomenon #5 – Doppler Effect Getting closer together – FOBS > FSOURCE … at increasing speed – GETTING HIGHER … at decreasing speed – GETTING LOWER Getting farther apart – FOBS < FSOURCE … at increasing speed – GETTING LOWER … at decreasing speed – GETTING HIGER B A

The Doppler Effect: what does motion do to waves? https://www.youtube.com/watch?v=h4OnBYrbCjY The Doppler Effect: what does motion do to waves?

https://www.youtube.com/watch?v=z0EaoilzgGE Big Bang Theory

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Sonic Boom https://www.youtube.com/watch?v=6B4IVcCuIZE