The Doppler Effect (Leaving Cert Physics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What does the Doppler effect describe?
What does the Doppler effect describe?
Apparent change in wave frequency
What happens to observed frequency when a wave source moves towards an observer?
What happens to observed frequency when a wave source moves towards an observer?
It increases
What happens to the pitch of an ambulance siren as it moves away from you?
What happens to the pitch of an ambulance siren as it moves away from you?
Pitch decreases (lower frequency)
What is red shift in electromagnetic waves?
What is red shift in electromagnetic waves?
Wavelength increases, source receding
What is blue shift in electromagnetic waves?
What is blue shift in electromagnetic waves?
Wavelength decreases, source approaching
What happens to wavelength ahead of a moving wave source?
What happens to wavelength ahead of a moving wave source?
Crests pushed closer, wavelength shorter
What is the formula for observed frequency when source approaches observer?
What is the formula for observed frequency when source approaches observer?
What is the formula for observed frequency when source recedes from observer?
What is the formula for observed frequency when source recedes from observer?
What is the memory aid for choosing the correct Doppler formula?
What is the memory aid for choosing the correct Doppler formula?
c-u for coming closer, c+u for away
What does Doppler ultrasound primarily examine in medical diagnostics?
What does Doppler ultrasound primarily examine in medical diagnostics?
Blood flow patterns and circulation
How does Doppler radar help in weather forecasting?
How does Doppler radar help in weather forecasting?
Measures speed of weather systems
What does red shift in starlight indicate to astronomers?
What does red shift in starlight indicate to astronomers?
Star is moving away from Earth