Physics Unit 1 Quiz

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1. What is red-shift?

  • The shifting of light to the red side of the spectrum due to an increase in wavelength.
  • The shifting of light to the red side of the spectrum due to a decrease in wavelength.
  • The shifting of light to the red side of the spectrum due to distance.
  • The shifting of light to the red side of the spectrum due to speed.
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2. Which of the following does not describe a loud, high pitched noise?

  • Low frequency.
  • Small wavelength.
  • Big amplitude.
  • High frequency.

3. What does a step-up transformer do?

  • Increases the voltage of electricity.
  • Increases the watts of electricity.
  • Slows the current running through the cables.
  • Delivers electricity to homes.

4. Which of the following is untrue about images formed by plane mirrors?

  • The image is virtual.
  • The image is in front of the mirror.
  • The image is behind the mirror.
  • The image is laterally inverted.

5. Which of the following is incorrect about sound waves?

  • They're perpendicular to the direction of travel and energy transfer.
  • They're parallel to the direction of travel and energy transfer.
  • They're longitudinal.
  • They're made of compressions and rarefactions.

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