Doppler Effect
Flashcard
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Physics
•
11th Grade
•
Practice Problem
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Medium
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the Doppler Effect?
Back
The observed change in frequency of sound or light because of the relative motion of a wave source and the observer.
2.
FLASHCARD QUESTION
Front
When a sound source moves away from an observer, how does the pitch of the sound change?
Back
The pitch appears lower.
3.
FLASHCARD QUESTION
Front
What happens to the frequency of sound as the source approaches an observer?
Back
The frequency increases, resulting in a higher pitch.
4.
FLASHCARD QUESTION
Front
If a car's horn sounds higher as it approaches you, what can you infer about its motion?
Back
The car is moving towards you.
5.
FLASHCARD QUESTION
Front
What is the relationship between wavelength and frequency in the context of the Doppler Effect?
Back
As frequency increases, wavelength decreases.
6.
FLASHCARD QUESTION
Front
If a star's light shifts towards the blue end of the spectrum, what does this indicate about its motion?
Back
The star is moving towards the Earth.
7.
FLASHCARD QUESTION
Front
What is redshift in astronomy?
Back
Redshift refers to the phenomenon where light from an object moving away from the observer shifts towards the red end of the spectrum.
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