Sound Waves And Stars: The Doppler Effect

Duration: 12

Genre: Educational

Year Published: 1964

Creator: BAILEY FILM ASSOCIATES

Format: 16mm

Sound: sound

Description: Why does the sound of a passing train suddenly change as the train goes by? Christian Doppler found that the waves ahead of a moving source increase in frequency (the pitch rises) and that the frequency of the waves behind such a source decreases (the pitch drops). This effect is called the Doppler Effect., A young scientist, Christian Doppler, found that the waves ahead of a moving source increase in frequency (the pitch rises) and that the frequency of the waves behind such a source decreases ( the pitch drops). This is called the Doppler effect. This revision shows how radar waves in a police speed detector and light waves from the stars also demonstrate the Doppler effect.

Complete Record: Why does the sound of a passing train suddenly change as the train goes by? Christian Doppler found that the waves ahead of a moving source increase in frequency (the pitch rises) and that the frequency of the waves behind such a source decreases (the pitch drops). This effect is called the Doppler Effect., A young scientist, Christian Doppler, found that the waves ahead of a moving source increase in frequency (the pitch rises) and that the frequency of the waves behind such a source decreases ( the pitch drops). This is called the Doppler effect. This revision shows how radar waves in a police speed detector and light waves from the stars also demonstrate the Doppler effect.NOTE: Two (or more) records have been merged together to create this data.