Revise later
SpaceTo flip
If confident
All Flashcards
What happens to the observed frequency when a wave source moves towards an observer?
The observed frequency appears to be higher.
What happens to the observed frequency when a wave source moves away from an observer?
The observed frequency appears to be lower.
What is the effect of increasing the frequency of a wave, assuming constant velocity?
The wavelength decreases.
What is the effect of increasing the wavelength of a wave, assuming constant velocity?
The frequency decreases.
What is the relationship between the speed, frequency, and wavelength of a periodic wave?
Wavelength is the ratio of speed over frequency.
What is a periodic wave?
A wave that repeats as a function of both time and position.
Define the period of a wave.
The repeat time of the wave.
Define the frequency of a wave.
The number of repetitions of the wave per unit time.
Define the wavelength of a wave.
The repeat distance of the wave.
What is the Doppler Effect?
The change in observed frequency and wavelength of a wave due to the relative motion of the source and observer.
What is the effect of increasing the frequency of a wave, assuming constant velocity?
The wavelength decreases.
What is the effect of a wave source moving towards an observer?
The observed frequency increases (Doppler Effect).
What is the effect of a wave source moving away from an observer?
The observed frequency decreases (Doppler Effect).
What happens to the observed wavelength when a wave source moves towards an observer?
The observed wavelength decreases.
What happens to the observed wavelength when a wave source moves away from an observer?
The observed wavelength increases.