Khan Academy Static

In these videos and articles you'll learn how the Doppler effect causes a change in the measured frequency of a moving source of sound or moving sound detector. You'll also learn how to calculate the observed frequency using the formula for the Doppler effect when dealing with either a moving source of sound or a moving sound detector.

10062_Doppler_effect_for_a_moving_observer.html

10060_Doppler_effect_formula_when_source_is_moving_away.html

10061_When_the_source_and_the_wave_move_at_the_same_velocity.html

10063_Doppler_effect_reflection_off_a_moving_object.html

10059_Doppler_effect_formula_for_observed_frequency.html

10058_Doppler_effect_introduction.html