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Speed of Light Questions

Speed of Light Questions. Physics Light Unit. Numero 1. The sun is about 150 million kilometers from earth. How long does it take light from the sun to reach earth? (The speed of light is 3x10 8 m/s.). Question 2.

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Speed of Light Questions

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  1. Speed of Light Questions Physics Light Unit

  2. Numero 1 • The sun is about 150 million kilometers from earth. How long does it take light from the sun to reach earth? (The speed of light is 3x108 m/s.)

  3. Question 2 • The horsehead nebula in Orion is 1500 light-years away; the Andromeda galaxy is 2 million light-years away; the most distant quasars are over 10 billion light-years away. Is it possible to know what these objects look like right now? Why or why not?

  4. Nombre 3 • A light year is a unit of distance, the distance light travels in one year. How many kilometers long is a light-year?

  5. Answers • 1. t = 8.3 minutes • 2. No, it takes a long time for that light to reach us. • 3. 1light-year = 9.5 x 1012 km

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