Chapter 3 quiz_ ASTRON 001 _ Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
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Los Angeles City College *
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Course
001
Subject
Astronomy
Date
Dec 6, 2023
Type
Pages
5
Uploaded by bobbygomez30
11/2/23, 11:11 AM
Chapter 3 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
https://ilearn.laccd.edu/courses/242104/quizzes/1840545
1/5
Chapter 3 quiz
Due
Dec 16 at 11:59pm
Points
10
Questions
10
Available
Aug 28 at 8am - Dec 18 at 11:59pm
Time Limit
None
Allowed Attempts
2
Instructions
Score for this attempt:
10
out of 10
Submitted Sep 13 at 11:29am
This attempt took 4 minutes.
This is the Chapter 3 quiz. You have two attempts to answer these questions, and your highest score will
be recorded!
1 / 1 pts
Question 1
A telescope with an 8-inch mirror will collect twice as much light as one with
a 4-inch mirror.
True
False
Correct!
Correct!
1 / 1 pts
Question 2
Stars do not twinkle; the instability of the atmosphere causes this effect.
11/2/23, 11:11 AM
Chapter 3 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
https://ilearn.laccd.edu/courses/242104/quizzes/1840545
2/5
True
Correct!
Correct!
False
1 / 1 pts
Question 3
What is the main reason that ultraviolet astronomy must be done in space?
To collect more visible light without loss.
To provide a stable platform for imaging.
Because it's very dark in orbit.
To prevent competing countries from reaching them.
Earth's atmosphere absorbs most ultraviolet wavelengths.
Correct!
Correct!
1 / 1 pts
Question 4
X-Ray telescopes employ the same basic design that optical telescopes use.
True
False
Correct!
Correct!
1 / 1 pts
Question 5
Because gamma rays have very short wavelengths, gamma ray telescopes
can achieve extremely high angular precision.
11/2/23, 11:11 AM
Chapter 3 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
https://ilearn.laccd.edu/courses/242104/quizzes/1840545
3/5
True
False
Correct!
Correct!
1 / 1 pts
Question 6
The best way to study young stars hidden behind interstellar dust clouds
would be to use
infrared light.
Correct!
Correct!
ultraviolet light.
blue light.
X-rays.
gamma rays.
1 / 1 pts
Question 7
If you were trying to detect very cold molecular dust clouds out in space, you
should probably use which kind of telescope?
Ultraviolet.
Visible.
Radio.
Correct!
Correct!
Gamma ray.
X-ray.
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11/2/23, 11:11 AM
Chapter 3 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
https://ilearn.laccd.edu/courses/242104/quizzes/1840545
4/5
1 / 1 pts
Question 8
Adaptive optics can help increase the resolution of telescopes.
True
Correct!
Correct!
False
1 / 1 pts
Question 9
We get all of our information about the sky from electromagnetic radiation.
True
False
Correct!
Correct!
1 / 1 pts
Question 10
The main reason professional observatories are built on the highest
mountaintops is to
for the great ocean views.
be above the rainclouds.
improve chromatic aberration.
reduce atmospheric blurring.
Correct!
Correct!
get away from the city lights.
11/2/23, 11:11 AM
Chapter 3 quiz: ASTRON 001 : Elementary Astronomy - Kiley D. - FALL 2023 - SECTION# 14762
https://ilearn.laccd.edu/courses/242104/quizzes/1840545
5/5
Quiz Score:
10
out of 10