©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
Astro 1 PSU- Final Exam Questions And
Answers |Latest 2025 | Guaranteed Pass.
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 the Earth is hitting
the Moon
B. As the Moon rotates, it presents a different phase to us over the course of its "day".
C. Depending on where the Moon is along its orbit, we see different amounts of 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
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
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, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
E. directly above the Earth's equator - Answer✔C. aligned with the Earth's orbit around the Sun
In 13,000 years, July will occur during winter in the northern hemisphere
True of false? - Answer✔False
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
Which of the following statements about eclipses are true? Select all that apply.
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 on Earth
E. only a small portion of the Sun can be covered by a solar eclipse - Answer✔D. total solar
eclipses occur roughly every 360 years
What did Aristotle use to explain the phenomenon that caused planets to appear as if 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
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If Earth was compressed so that its radius was 4 times smaller, but the mass stayed 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 - Answer✔E. 16 times weaker
The season during which we see a constellation at night changes over time because of the
A. Earth's orbit around the Sun
B. precession of Earth's spin axis
C. Earth's spin
D. tilt of the Earth's spin axis relative to the Earth's orbit
E. the elliptical shape of the Earth's orbit - Answer✔B. precession of Earth's spin axis
Which of the following are true? Select all that apply.
A. If Earth is moving through space, stars should exhibit parallax motion
B. Aristotle detected parallax motion of stars
C. Planets exhibit parallax motion, but it is too small to see with the naked eye
D. Aristotle believed in the geocentric model of the solar system - Answer✔A. If Earth is moving
through space, stars should exhibit parallax motion
D. Aristotle believed in the geocentric model of the solar system
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, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
If the time is midnight and Mars is in opposition, where is Mars in the sky?
A. on the horizon and rising
B. on the horizon and setting
C. on the meridian
D. beneath you
E. Mars can never appear in opposition - Answer✔C. on the meridian
Earth experiences seasons because
A. the Earth's spin axis is tilted relative to the Earth's orbit
B. the Earth's spin axis is precessing
C. the Earth's orbit is slightly elliptical, so the Earth's distance from the Sun changes during the
year
D. during winter and summer, one hemisphere is closer to the Sun than the other one -
Answer✔A. the Earth's spin axis is tilted relative to the Earth's orbit
Which of these statements about planetary orbits in our solar system is true? Select all that
apply.
A. The planets are found close to the Zodiac constellations
B. The planets move in elliptical orbits with the Sun at the center of the ellipse
C. A planet moves slowest at the point in its orbit that is closest to the Sun
D. Inferior planets take more time to orbit the Sun than superior planets
4|Page
Astro 1 PSU- Final Exam Questions And
Answers |Latest 2025 | Guaranteed Pass.
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 the Earth is hitting
the Moon
B. As the Moon rotates, it presents a different phase to us over the course of its "day".
C. Depending on where the Moon is along its orbit, we see different amounts of 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
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
1|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
E. directly above the Earth's equator - Answer✔C. aligned with the Earth's orbit around the Sun
In 13,000 years, July will occur during winter in the northern hemisphere
True of false? - Answer✔False
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
Which of the following statements about eclipses are true? Select all that apply.
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 on Earth
E. only a small portion of the Sun can be covered by a solar eclipse - Answer✔D. total solar
eclipses occur roughly every 360 years
What did Aristotle use to explain the phenomenon that caused planets to appear as if 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
2|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
If Earth was compressed so that its radius was 4 times smaller, but the mass stayed 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 - Answer✔E. 16 times weaker
The season during which we see a constellation at night changes over time because of the
A. Earth's orbit around the Sun
B. precession of Earth's spin axis
C. Earth's spin
D. tilt of the Earth's spin axis relative to the Earth's orbit
E. the elliptical shape of the Earth's orbit - Answer✔B. precession of Earth's spin axis
Which of the following are true? Select all that apply.
A. If Earth is moving through space, stars should exhibit parallax motion
B. Aristotle detected parallax motion of stars
C. Planets exhibit parallax motion, but it is too small to see with the naked eye
D. Aristotle believed in the geocentric model of the solar system - Answer✔A. If Earth is moving
through space, stars should exhibit parallax motion
D. Aristotle believed in the geocentric model of the solar system
3|Page
, ©THESTAR 2024/2025 ALL RIGHTS RESERVED 1:27PM. A+
If the time is midnight and Mars is in opposition, where is Mars in the sky?
A. on the horizon and rising
B. on the horizon and setting
C. on the meridian
D. beneath you
E. Mars can never appear in opposition - Answer✔C. on the meridian
Earth experiences seasons because
A. the Earth's spin axis is tilted relative to the Earth's orbit
B. the Earth's spin axis is precessing
C. the Earth's orbit is slightly elliptical, so the Earth's distance from the Sun changes during the
year
D. during winter and summer, one hemisphere is closer to the Sun than the other one -
Answer✔A. the Earth's spin axis is tilted relative to the Earth's orbit
Which of these statements about planetary orbits in our solar system is true? Select all that
apply.
A. The planets are found close to the Zodiac constellations
B. The planets move in elliptical orbits with the Sun at the center of the ellipse
C. A planet moves slowest at the point in its orbit that is closest to the Sun
D. Inferior planets take more time to orbit the Sun than superior planets
4|Page
