Master the Speed of Light
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Questions and Answers

Which unit is commonly used to measure the speed of light in vacuum?

  • Kilometers per hour
  • Miles per second
  • Meters per second (correct)
  • Miles per hour

    • According to the special theory of relativity, what is the upper limit for the speed at which conventional matter or energy can travel through space?

  • The speed of light (correct)
  • The speed of sound
  • The speed of electricity
  • The speed of gravity

    • Which type of radiation travels at the speed of light?

  • X-rays
  • Visible light (correct)
  • Sound waves
  • Radio waves

    • What noticeable effects does the finite speed of light have for long distances and very sensitive measurements?

    <p>Time delay</p> Signup and view all the answers

    Why can starlight viewed on Earth provide information about the history of the universe?

    <p>Because starlight is from the past</p> Signup and view all the answers

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