Purpose: To illustrate qualitatively the Doppler effect in sound.

- There are 2 options to use to demonstrate the doppler effect. Please specify which one you want or if you want both when you sign up.

Option 1:

A small speaker connected to an oscillator by a flexible cable.

Turn on the oscillator and set it to a frequency of about 600 Hz. Twirl the speaker about an axis parallel to the front of the classroom. The class will hear a rise in pitch as the speaker approaches and a drop in pitch as it recedes.

Option 2:

The doppler ball! Push the button at the X to make it start buzzing. Throw it at the students and observe the changes in pitch.

References:

Manual: None