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Grades 11 and 12 - Physics - Senior High School - Waves - The Doppler Effect and Redshift
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Grades 11 and 12 - Physics - Senior High School - Waves - The Doppler Effect and Redshift
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10 Questions

1. Why does redshift support the idea of the Big Bang theory?
2. It can be observed that there is an increase in the wavelength of light received from distant galaxies. The further away the galaxy is, the faster it is moving away from us and the larger the observed increase in wavelength. What is this effect commonly known as?
3. What is the cosmic microwave background radiation (C.M.B.R.)?
4. How does the frequency and wavelength of a wave source change when it moves away from an observer?
5. If a police car is traveling towards an observer and its siren is on, will the frequency of the siren be higher, lower or the same as when the car is moving away from the observer?
6. What is the Doppler effect?
7. Which is the only current theory that explains and accounts for the existence of the C.M.B.R?
8. Where does C.M.B.R come from?
9. If a police car is traveling away from an observer and its siren is on, how will the wavelength be different to when the car is moving towards the observer?
10. How does the frequency and wavelength of a wave source change when it moves towards an observer?

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