Doppler Ball

Supplier: ARBOR SCIENTIFIC
P7-7120
470358-374EA 26.84 CAD
470358-374
Doppler Ball
Educational Materials Physics Educational Materials Waves and Oscillations Learning Activities

Foam ball with buzzer audibly demonstrates the Doppler effect during motion.



  • Soft foam ball with internal battery-powered buzzer

  • Can be thrown or swung to observe doppler frequency shifts
  • Two CR2032 batteries included


The Doppler ball is a safe, hands-on tool for demonstrating the Doppler effect in a classroom setting. By activating the internal buzzer and moving the ball, either by throwing it very fast or swinging it on a string, students can hear the change in pitch that occurs due to motion, illustrating how frequency shifts when a sound source

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