Doppler Effect and Redshift

Flashcard
•
Physics
•
10th Grade
•
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 wavelength of light when an object moves away from an observer?
Back
The wavelength increases, resulting in redshift.
3.
FLASHCARD QUESTION
Front
What is redshift?
Back
Redshift is the phenomenon where light from an object moving away from an observer is shifted towards the red end of the spectrum, indicating an increase in wavelength.
4.
FLASHCARD QUESTION
Front
What is blueshift?
Back
Blueshift is the phenomenon where light from an object moving towards an observer is shifted towards the blue end of the spectrum, indicating a decrease in wavelength.
5.
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 (pitch). As it moves away, the waves stretch, leading to a lower frequency.
6.
FLASHCARD QUESTION
Front
What is the relationship between frequency and wavelength in the context of the Doppler Effect?
Back
Frequency and wavelength are inversely related; as frequency increases, wavelength decreases, and vice versa.
7.
FLASHCARD QUESTION
Front
What does a redshifted galaxy indicate about its motion?
Back
A redshifted galaxy indicates that it is moving away from the observer.
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