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Astro 1 PSU- Final Exam (2024 / 2025) Actual Questions and Verified Answers, 100% Guarantee Pass
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Astro 1 PSU- Final Exam (2024 / 2025) Actual Questions and Verified Answers, 100% Guarantee Pass
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Astro 1 PSU- Final Exam.pdf file:///C:/Users/HP/Desktop/dddd/Astro%201%20PSU-%20Final%20ASTRO 1 PSU- Final Exam Actual
Questions & Answers
1. Why do we see the Moon appear to go through phases as seen from Earth?
A. The Moon reflects "Earthshine", so it depends on how much light from theEarth is
hitting the Moon
B. As the Moon rotates, it presents a different phase to us over the course ofits "day".
C. Depending on where the Moon is along its orbit, we see different amountsof its
illuminated side
D. The Earth's shadow blocks out part of the Moon from time to time
Answer C. Depending on where the Moon is along its orbit, we see different amounts of its
illuminated side
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2. The Zodiac constellations are
A. directly above the North Pole and South Pole
B. distributed fairly evenly over the northern portion of the celestial sphere
C. aligned with the Earth's orbit around the Sun
D. distributed fairly evenly over the entire celestial sphere
E. directly above the Earth's equator
Answer C. aligned with the Earth's orbit around theSun
3. In 13,000 years, July will occur during winter in the northern hemisphere
True of false?
Answer False
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4. Over a period of a few hours, you see the Moon rising above the horizon.This motion
is mostly due to
A. Moon's spin
B. Moon's orbit around Earth
C. Earth's spin
D. Earth's orbit around Sun
Answer C. Earth's spin
5. Which of the following statements about eclipses are true? Select all thatapply.
A. a total solar eclipse is visible from half of Earth
B. lunar eclipses occur during the new Moon
C. solar eclipses occur when the Moon is in opposition
D. total solar eclipses occur roughly every 360 years for a given location onEarth
E. only a small portion of the Sun can be covered by a solar eclipse
Answer D. totalsolar eclipses occur roughly every 360 years
6. What did Aristotle use to explain the phenomenon that caused planets to appear as if
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they were moving backwards (and then forward again) in space?
A. parallax as one planet passes by another
B. the motion of Earth around the Sun
C. a shooting star
D. epicycles
E. precession of Earth's spin axis
Answer D. epicycles
7. If Earth was compressed so that its radius was 4 times smaller, but the massstayed the
same, the force of gravity felt at its surface would be...
A. 2 times weaker
B. 2 times stronger
C. 4 times weaker
D. 4 times stronger
E. 16 times weaker
F. 16 times stronger
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