Do Now: Doppler Effect

Do Now: Doppler Effect

Assessment

Flashcard

Physics

9th Grade

Practice Problem

Hard

Created by

Wayground Content

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15 questions

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1.

FLASHCARD QUESTION

Front

What happens to the pitch of a sound when the source is moving toward an observer?

Back

The pitch sounds higher.

2.

FLASHCARD QUESTION

Front

What is the Doppler Effect?

Back

A change in frequency due to the relative motion of a wave source and an observer.

3.

FLASHCARD QUESTION

Front

If you are in a moving car and honk the horn, how does the pitch sound to you?

Back

The pitch stays the same because you are moving with the sound.

4.

FLASHCARD QUESTION

Front

What frequency would you hear from a fire truck moving away from you if its original frequency is 500 Hz?

Back

You would hear a frequency of 375 Hz.

5.

FLASHCARD QUESTION

Front

What types of waves can experience the Doppler Effect?

Back

Any type of wave.

6.

FLASHCARD QUESTION

Front

How does the Doppler Effect affect sound waves when the source is moving away from the observer?

Back

The pitch sounds lower.

7.

FLASHCARD QUESTION

Front

What is the formula for calculating the observed frequency in the Doppler Effect when the source is moving toward the observer?

Back

f' = f (v + vo) / (v - vs), where f' is the observed frequency, f is the source frequency, v is the speed of sound, vo is the speed of the observer, and vs is the speed of the source.

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