Vehicle that emits sound waves and an observer who will hear the sounds. Gizmo Warm-up The Doppler Shift Gizmo illustrates why the Doppler shift occurs. The change in the sound that you hear is called the Doppler shif. The pitch becomes lower as the vehicle passes by. Prior Knowledge Questions Have you ever heard a siren on a moving ambulance, fire truck, or (Do these BEFORE using the Gizmo.) police car? If so, what happens to the sound as the vehicle Vocabulary: Doppler shift, frequency, pitch, sonic boom, sound waves, wavelength
Respond to the questions and prompts in the orange Directions: Follow the instructions to go through the simulationboxes.
