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- 1. Multiple ChoiceWhat best describes the doppler effect?An apparent change in frequency of a wave due to the relative motion between a wave source and an observerWhen sound changes pitchWhen light changes colorAn apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.
- 2. Multiple ChoiceIf a star is being observed from Earth and it's light has shifted towards the blue side of the electromagnetic spectrum it would be...Moving towards the EarthMoving away from the EarthThis is a trick question that cannot be answeredIt isn't a star, it is a very large blueberry.
- 3. Multiple ChoiceIf a star is being observed from Earth and it's light has shifted towards the red side of the electromagnetic spectrum it would be...Moving towards the EarthMoving away from the EarthThis is a trick question that cannot be answeredIt isn't a star, it is a very large blueberry.
- 4. Multiple ChoiceThe vast majority of galaxies in our universe are moving away from us. We know this because we observe __________ in the galaxies absorption spectra.RedshiftBlueshiftTurbulanceSuperposition
- 5. Multiple Choice
Use the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.It is not movingIt is moving away from Earth (Redshift)It is moving towards Earth (Blueshift)It is moving towards Earth (Redshift) - 6. Multiple ChoiceUse the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.It is not moving relative to EarthIt is moving away from Earth (Redshift)It is moving towards Earth (Blueshift)It is moving towards Earth (Redshift)
- 7. Multiple ChoiceUse the image to identify the motion of the object relative to Earth. Compare the absorption spectra of the star to what the star would look like if it were not moving at all relative to Earth.It is not moving relative to EarthIt is moving away from Earth (Redshift)It is moving towards Earth (Blueshift)It is moving towards Earth (Redshift)
- 8. Multiple ChoiceAn object that is moving VERY fast away from Earth would have ________ than an object that is moving very slow away from Earth.More RedshiftMore BlueshiftLess RedshiftLess Blueshift
- 9. Multiple ChoiceAn object that is moving VERY fast towards the Earth would have ________ than an object that is moving very slow towards the Earth.More RedshiftMore BlueshiftLess RedshiftLess Blueshift
- 10. Multiple ChoiceWhich discovery(ies) came from our understanding redshift/ blueshift?The universe is expandingMost galaxies are moving away from usAndromeda galaxy will collide with the Milky way in 3.75 billion yearsAll of the above (and many more)
- 11. Multiple ChoiceWhen redshift occurs, the perceived frequency of the wave would...IncreaseDecreaseStay the sameMake bird sounds
- 12. Multiple ChoiceWhen redshift occurs, the perceived WAVELENGTH of the wave would...IncreaseDecreaseStay the sameMake squirrell sounds
- 13. Multiple ChoiceWhen blueshift occurs, the perceived frequency of the wave would...IncreaseDecreaseStay the sameMake duck sounds
- 14. Multiple ChoiceWhen blueshift occurs, the perceived WAVELENGTH of the wave would...IncreaseDecreaseStay the sameMake frog sounds
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