learn.howToCalculate
learn.whatIsHeading
The Doppler effect describes frequency change when a source and observer are in relative motion. Sound pitches higher when approaching and lower when receding.
Formule
f' = f × (v ± v_observer) / (v ∓ v_source)
Guide étape par étape
- 1Enter source frequency and speed
- 2Enter observer and source velocities
- 3Apply Doppler formula with correct sign conventions
Exemples résolus
Entrée
f = 440 Hz, source approaching at 10 m/s, v = 340 m/s
Résultat
f' ≈ 454 Hz
Observed frequency increases
Erreurs courantes à éviter
- ✕Wrong sign conventions for approaching/receding
- ✕Using ground speed instead of relative speed
Prêt à calculer ? Essayez la calculatrice gratuite Doppler Effect
Essayez-le vous-même →