Understanding Physical Science

Observations in Astronomy – Homework

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INSTRUCTIONS: Print out a copy of this homework assignment, answer the questions correctly and give or send the completed homework to your instructor.

NAME:

1. How did ancient people tell time?

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2. What device dramatically changed the course of astronomy? Why?

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3. How is a spectrometer used to measure the speed of a star?

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4. Where do we have these devices in space today?

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5. What is the definition of a light year?

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6. Name two famous constellations in the sky.

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