Sound: the Doppler Effect

The video tutorial explains how the frequency of sound waves affects pitch, using examples like a passing train and car horn to illustrate the Doppler effect. As the source of sound moves, the frequency and pitch change, increasing as it approaches and decreasing as it moves away. This phenomenon is known as the Doppler effect, which is caused by the movement of the sound source or the listener.

Describe the relationship between frequency and pitch in the context of sound waves.

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What happens to the sound of a train as it approaches and then moves away from you?

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How does the pitch of a car horn change as it passes by?

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Can you explain the Doppler effect in your own words?

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What causes the change in frequency and pitch of a sound according to the Doppler effect?

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