ASTR 101 Quiz 1
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School
University of Victoria *
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Course
101
Subject
Astronomy
Date
Jan 9, 2024
Type
Pages
2
Uploaded by AgentAtom12793
When a solar flare happens on the surface of the Sun, how long afterwards will it be visible to
people on Earth?
8 min
Why is Homeopathy not a scientific theory?
Homeopathic experiments are not repeatable.
The placebo effect can produce real, physical changes in the body.
True
Which of these objects is closest to the Milky Way Galaxy?
Large Magellanic Cloud
Which one of the following axes is parallel to the axis of the ecliptic?
Earth's orbital axis
Which of these statements about astronomy is true?
Astronomy makes falsifiable predictions and allows for repeatable experiments.
In what constellation will the North Celestial Pole reside in 11000 years?
Lyra
Which of the following is not a constellation?
The Big Dipper
Use the following statement to answer the question below: "I hypothesize that the world around
us is controlled by an evil demon, who manipulates our experiences to disguise what we see,
hear and feel so that we are ignorant of the nature of the real world and of the demon."
What requirement of a scientific theory does the hypothesis of the evil demon violate?
Falsifiable
What is the overarching goal of using the scientific method?
To identify useful explanations for physical phenomena
Which of the following objects is the brightest in the night sky?
The Moon
Which of these would happen if the axial tilt of Earth were larger than it currently is?
The seasons would be more extreme.
What is the primary scientific reason for identifying constellations?
To provide a relational map of the night sky.
An object is measured to have an angular diameter of 0.5o when it is about 400 000 km away
from Earth. What is the approximate diameter of the object in km?
3 400 km
A headline reads, "Brightness of Star X has significantly decreased, now at a magnitude of
1.50." Given what you know of magnitude values of stars, which of these could the magnitude
have plausibly been before the decrease in brightness?
0.2
The technique used to measure the distance from Earth to stars on the other side of the Milky
Way is triangulation using the parallax of the star.
FALSE
Which of these is a consequence of retrograde spin?
Sidereal day is longer than solar day
Astrology is simple - the presence of stars in the sky indicates a cyclical pattern that determines
dispositions, much like the seasons.
True
Astronomers describe the brightness of stars using the brilliance scale.
False
The full moon occurs once every month.
Correct Answer
FALSE
Astrology elegantly explains patterns in human behaviour.
True
One star has a magnitude of 4.6. What would be the magnitude of another star that is 10x
brighter than this?
2.1
The radial speed (towards/away from us) of nearby stars can be determined by measuring the
change in parallax over a period of time.
Correct Answer
FALSE
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