G8_ Are We Alone?_Approaching_05_Assessment
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G8_ Are We Alone?_Approaching_05_Assessment
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Question 1 of 4
1. Question
- Which of the following lists correctly places the measurements in order from smallest to largest?
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Question 2 of 4
2. Question
- Which of the following measurement units would be correct to measure the distance between Mercury and Jupiter?
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Question 3 of 4
3. Question
- . Proxima Centauri is a small low-mass star located 4.244 light-years away from the Sun in the southern constellation of Centaurus. Its Latin name means the “nearest of Centaurus”. This object was discovered in 1915 by Robert Innes and is the nearest-known star to the Sun.
Given the distance of Proxima Centauri, which of the following statements is true?
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- . Proxima Centauri is a small low-mass star located 4.244 light-years away from the Sun in the southern constellation of Centaurus. Its Latin name means the “nearest of Centaurus”. This object was discovered in 1915 by Robert Innes and is the nearest-known star to the Sun.
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Question 4 of 4
4. Question
- A light year is a unit used to measure time.
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Question 5 of 4
5. Question
- Do you think the option of sending astronauts out into space to search for life is practical? Use sentences from the passage to support your response.
The option of sending astronauts out into space to search for life is NOT practical because of the great distances involved. Our galaxy, the Milky Way Galaxy, spans around 100,000 light years. The Andromeda Galaxy, is the closest galaxy to our own Milky Way Galaxy. It is over 110,000 light years away. What if we could build and launch a spacecraft capable of reaching speeds near 20% the speed of light? How long would it take to reach our nearest neighboring star system, Proxima Centauri? Instead of the 4 years for light to travel this distance, it would take over 20 years for an astronaut just to get there. Keep in mind, we don’t have a spacecraft capable of travelling at these speeds.
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