Uploaded December 2009 | Updated September 2026, 2 weeks ago
Measuring the Doppler Effect with a loud alarm fixed to a remote control car. The car had a speed of approximately 3.1 m/s and the frequency of the alarm is about 3950 Hz. As the car approaches the measured frequency is higher (about 3975 Hz) and as the car moves away the measured frequency is lower (about 3925 Hz).
Measuring the Doppler Effect with a loud alarm fixed to a remote control car. The car had a speed of approximately 3.1 m/s and the frequency of the alarm is about 3950 Hz. As the car approaches the measured frequency is higher (about 3975 Hz) and as the car moves away the measured frequency is lower (about 3925 Hz).



