Astro Post test week 2
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School
University of the Cumberlands *
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Course
101
Subject
Astronomy
Date
Dec 6, 2023
Type
docx
Pages
4
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REPORT FOR: JUDY THOMAS
Post-test for Life in Space
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Post-test for Life in Space Section
Page: Possibility of Life
Question #1
Based on the information, is it probable that life outside of Earth
can be found in our lifetimes?
yes
Question #2
Explain your choice to question #1.
There are billions of stars . It is likely that many of those stars have orbiting
planets.
Question #3
How certain are you about your claim based on your explanation?
(3)
Question #4
Explain what influenced your certainty rating.
Because of advanced technology and the discovery of more stars.
Page: Life on Athena
Question #5
Can life similar to that on Earth exist on Athena?
no
Question #6
Explain what might influence whether or not life can exist on
Athena.
there is no ozone
Question #7
How certain are you about your claim based on your explanation?
(3)
Question #8
Explain what influenced your certainty rating.
the data on the chart
Page: Detecting planets
Question #9
Based on the graphs, is there a planet orbiting this star?
yes
Question #10
Explain your answer.
the information provided on the graph indicate movement and light.
Question #11
How certain are you about your claim based on your explanation?
(3)
Question #12
Explain what influenced your certainty rating.
information in this weeks text
Page: Finding planets
Question #13
The graphs on the left show the velocity over time for four stars (A,
B, C, and D) with respect to Earth's position.
Which velocity graph indicates a single planet orbiting a distant
star?
Graph A
Question #14
When viewed from Earth, the light from very distant galaxies shows
a red shift.
Which statement is supported by this evidence?
This is evidence that these distant galaxies are
moving away from Earth.
Question #15
Scientists studying a Sun-like star named Ogle-Tr-3 discovered a
planet that is, on average, 3.5 million kilometers away from the
star's surface. The planet was discovered as a result of observing a
cyclic decrease in the brightness of Ogle-Tr-3 every 28.5 hours. The
changing brightness is the result of the planet blocking some of the
starlight when it is between Ogle-Tr-3 and Earth.
The planet was discovered when it passed between Earth and the
star Ogle-Tr-3.
Which event in our solar system results from a similar type of
alignment of the Moon between Earth and the Sun?
solar eclipse
Page: Finding planets
Question #16
The graphs on the left show the light intensity over time for four
stars (E, F, G, and H) that are visible from Earth.
Which light intensity graph indicates a single planet orbiting a
distant star?
Graph F
Question #17
The diagram below represents the bright-line spectrum for an
element.
The spectrum of the same element observed in the light from a
distant star is shown below.
What does the shift in spectral lines indicate?
The shift in spectral lines indicates that the star is moving
away from Earth.
Question #18
The image below shows a spectrograph of a distant planet's
atmosphere.
What might a scientist be able to learn about the planet from
looking at its spectral emissions?
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