Science 9 Unit Test

Science 9 Unit Test

  • Submitted By: ylingpan24
  • Date Submitted: 11/16/2011 5:54 AM
  • Category: Science
  • Words: 271
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SCIENCE 9 UNIT TEST: SPACE EXPLORATION
TOTAL: 60 MARKS

PART I: MULTIPLE CHOICE (USE SCANTRON) Total: 30 marks
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PART II: SHORT ANSWERED QUESTIONS
WRITE YOUR ANSWERS ON BLANK SHEETS OF PAPER
Total: 30 marks

1) How is an expanding balloon similar to an expanding universe? (2 marks)
2) The universe is an extremely hot place. Explain why it was necessary for the universe to cool down before planets like Earth could form. (2 marks)
3) How does cosmological background radiation support the idea that the universe began as a single, explosive event? (2 marks)

4) Analyze the spectra below for the following questions (Total: 6 marks)

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a) List the element(s) in mystery star 1 (2 marks)
b) List the element(s) in mystery star 2 (2 marks)
c) There is something odd about mystery star 4’s spectrum. List the element(s) in mystery star 4 and state what is odd about the spectrum. (2 marks)

5) What is the difference between rotation and revolution of a planet? (2 marks)
6) Describe the Doppler effect. (2 marks)
7) Explain how you would use triangulation to determine the distance to an object on Earth’s surface. (2 marks)

8) Total 6 marks (1 mark each)
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8) How did the ancient Aboriginal people of British Columbia use their knowledge of the positions of the Sun, planets, and stars? (2 marks)

9) Name one risk and one reward for space exploration. (2 marks)

10) Describe two problems that need to be considered in order to colonize the Moon. (2 marks)

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