Doppler Effect
Flashcard
•
Physics
•
11th Grade
•
Practice Problem
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Doppler Effect?
Back
The Doppler Effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.
2.
FLASHCARD QUESTION
Front
What happens to the pitch of a sound when the source moves away from the observer?
Back
The pitch of the sound decreases, making it sound lower.
3.
FLASHCARD QUESTION
Front
What happens to the pitch of a sound when the source moves towards the observer?
Back
The pitch of the sound increases, making it sound higher.
4.
FLASHCARD QUESTION
Front
What is redshift in astronomy?
Back
Redshift occurs when light from an object is shifted towards the red end of the spectrum, indicating that the object is moving away from the observer.
5.
FLASHCARD QUESTION
Front
What is blueshift in astronomy?
Back
Blueshift occurs when light from an object is shifted towards the blue end of the spectrum, indicating that the object is moving towards the observer.
6.
FLASHCARD QUESTION
Front
How does the Doppler Effect apply to sound waves?
Back
As a sound source moves towards an observer, the sound waves compress, leading to a higher frequency (higher pitch). As it moves away, the waves stretch, leading to a lower frequency (lower pitch).
7.
FLASHCARD QUESTION
Front
What is the relationship between wavelength and frequency as an object moves towards an observer?
Back
As an object moves towards an observer, the wavelength decreases and the frequency increases.
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