ASTRO 1 PSU FINAL EXAM. LATEST 2025
QUESTIONS AND ANSWERS EXAM UPDATE.
Why do we see the Moon appear to go through phases as seen from Earth?
>>-CORRECT->>C. Depending on where the Moon is along its orbit, we see different amounts
of its illuminated side
The Zodiac constellations are
>>-CORRECT->>C. aligned with the Earth's orbit around the Sun
In 13,000 years, July will occur during winter in the northern hemisphere
>>-CORRECT->>False
Over a period of a few hours, you see the Moon rising above the horizon. This motion is mostly
due to>>-CORRECT->>C. Earth's spin
Which of the following statements about eclipses are true? Select all that apply.>>-CORRECT-
>>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?
>>-CORRECT->>D. epicycles
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...
>>-CORRECT->>E. 16 times weaker
The season during which we see a constellation at night changes over time because of the>>-
CORRECT->>B. precession of Earth's spin axis
Which of the following are true? Select all that apply.
>>-CORRECT->>A. If Earth is moving through space, stars should exhibit parallax motion
Aristotle believed in the geocentric model of the solar system
If the time is midnight and Mars is in opposition, where is Mars in the sky?
>>-CORRECT->>C. on the meridian
Earth experiences seasons because
>>-CORRECT->>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.
>>-CORRECT->>A. The planets are found close to the Zodiac constellations
, In State College, we can see Orion at night during the winter, but we don't see it at night during
the summer. This is because of the
>>-CORRECT->>A. Earth's orbit around the Sun
Which of the following did Galileo observe with his telescope? Select all that apply.>>-
CORRECT->>B. phases of Venus
E. moons of Jupiter
F. sunspots
Which of the following statements are true? Select all that apply.
>>-CORRECT->>C. For every force, there is an equal and opposite force
D. While in space, an astronaut's mass is the same as their mass while on Earth
Objects A and B feel an attractive force due to gravity. A has a smaller mass than B. Which one
experiences a greater acceleration?
>>-CORRECT->>A. object A
Among the following, who was the first to propose the heliocentric model for the solar system?
>>-CORRECT->>A. Copernicus
Which of these is not experiencing weightlessness? >>-CORRECT->>B. an astronaut standing
on the Moon
What kind of spectrum does the Sun produce? >>-CORRECT->>Absorption line
If the masses of both Earth and the Moon became twice as large, the force of gravity
experienced by each would >>-CORRECT->>C. increase by a factor of 4
The side of the Moon that is currently facing away from us >>-CORRECT->>A. Always faces
away from Earth but gets just as much light as the near side
You are standing on the dark side of the Moon during a new Moon. If you look at the Earth in
the sky, the phase of the Earth that you see is >>-CORRECT->>B. full
As you watch the sky over the course of the night, you see the stars move in arcs around a
point directly overhead. Where are you? >>-CORRECT->>A. north pole or south pole
Describe each of the following light sources with the type of spectrum that it produces: >>-
CORRECT->>1. continuous
emission line
absorption line
If you see a first quarter Moon rising above the horizon, what time is it? >>-CORRECT->>B.
noon
Which time and lunar phase correspond to a low tide? >>-CORRECT->>B. Sunrise and full
moon
Compared to telescopes on Earth, the primary advantage of the Hubble Space Telescope is
QUESTIONS AND ANSWERS EXAM UPDATE.
Why do we see the Moon appear to go through phases as seen from Earth?
>>-CORRECT->>C. Depending on where the Moon is along its orbit, we see different amounts
of its illuminated side
The Zodiac constellations are
>>-CORRECT->>C. aligned with the Earth's orbit around the Sun
In 13,000 years, July will occur during winter in the northern hemisphere
>>-CORRECT->>False
Over a period of a few hours, you see the Moon rising above the horizon. This motion is mostly
due to>>-CORRECT->>C. Earth's spin
Which of the following statements about eclipses are true? Select all that apply.>>-CORRECT-
>>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?
>>-CORRECT->>D. epicycles
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...
>>-CORRECT->>E. 16 times weaker
The season during which we see a constellation at night changes over time because of the>>-
CORRECT->>B. precession of Earth's spin axis
Which of the following are true? Select all that apply.
>>-CORRECT->>A. If Earth is moving through space, stars should exhibit parallax motion
Aristotle believed in the geocentric model of the solar system
If the time is midnight and Mars is in opposition, where is Mars in the sky?
>>-CORRECT->>C. on the meridian
Earth experiences seasons because
>>-CORRECT->>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.
>>-CORRECT->>A. The planets are found close to the Zodiac constellations
, In State College, we can see Orion at night during the winter, but we don't see it at night during
the summer. This is because of the
>>-CORRECT->>A. Earth's orbit around the Sun
Which of the following did Galileo observe with his telescope? Select all that apply.>>-
CORRECT->>B. phases of Venus
E. moons of Jupiter
F. sunspots
Which of the following statements are true? Select all that apply.
>>-CORRECT->>C. For every force, there is an equal and opposite force
D. While in space, an astronaut's mass is the same as their mass while on Earth
Objects A and B feel an attractive force due to gravity. A has a smaller mass than B. Which one
experiences a greater acceleration?
>>-CORRECT->>A. object A
Among the following, who was the first to propose the heliocentric model for the solar system?
>>-CORRECT->>A. Copernicus
Which of these is not experiencing weightlessness? >>-CORRECT->>B. an astronaut standing
on the Moon
What kind of spectrum does the Sun produce? >>-CORRECT->>Absorption line
If the masses of both Earth and the Moon became twice as large, the force of gravity
experienced by each would >>-CORRECT->>C. increase by a factor of 4
The side of the Moon that is currently facing away from us >>-CORRECT->>A. Always faces
away from Earth but gets just as much light as the near side
You are standing on the dark side of the Moon during a new Moon. If you look at the Earth in
the sky, the phase of the Earth that you see is >>-CORRECT->>B. full
As you watch the sky over the course of the night, you see the stars move in arcs around a
point directly overhead. Where are you? >>-CORRECT->>A. north pole or south pole
Describe each of the following light sources with the type of spectrum that it produces: >>-
CORRECT->>1. continuous
emission line
absorption line
If you see a first quarter Moon rising above the horizon, what time is it? >>-CORRECT->>B.
noon
Which time and lunar phase correspond to a low tide? >>-CORRECT->>B. Sunrise and full
moon
Compared to telescopes on Earth, the primary advantage of the Hubble Space Telescope is
