The Doppler Effect and Star Spectra


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question 1 of 3

If an object is coming towards you, the light emitted by it will have a(n) _____ wavelength, the sound emitted by it will have a(n) _____ wavelength.

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1. A star coming towards Earth (assuming the Earth is stationary), will have a:

2. The apparent change in frequency of a wave (e.g. sound or light wave) caused by the motion of the observer and/or source is known as:

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About This Quiz & Worksheet

The quiz will test you on key phrases related to the Doppler effect and star spectra. For instance, some questions will give you a definition. You will have to select the correct term from the choices. Other questions will give you a sentence related to the subject.

Quiz & Worksheet Goals

You will be tested on the following concepts:

  • Doppler effect
  • Star spectra
  • Blueshift
  • Redshift
  • Wavelengths

Skills Practiced

You will practice the following skills:

  • Making connections - use understanding of the concept of star spectra
  • Interpreting information - verify that you can read information regarding the Doppler effect and interpret it correctly
  • Information recall - access the knowledge you've gained regarding the direction of velocity
  • Defining key concepts - ensure that you can accurately define a blueshift

Additional Learning

If you would like to find out more, you can read the lesson called The Doppler Effect and Star Spectra. You'll study the following topics:

  • Exploring light waves on a spectrum
  • Understanding blueshift and redshift
  • Relating wavelengths to observing stars from Earth