WWB Trainer

WWB Flashcards

What effect explains the redshift in the spectral lines of stars?

Doppler Effect

Physics Story 
Light Waves.

In physics, what does apparent “stillness” usually represent?

Dynamic equilibrium

Physics Quote 
Impermanence.

What property of sound determines pitch and remains constant across media?

Frequency (not speed, nor wavelength)

Physics FAQ 
Sound Waves.
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