1
OU ASTR 1514 Final Exam Study Guide
Questions with Correct Answers | Updated
(100% Correct Answers)
planet must pass directly in front of the star Answer: Detecting a
planet around another star using the transit method is difficult
because the
The terrestrial planets did not grow massive enough to hold on to
those gases before the solar winds blew them out of the disk.
Answer: Why did the giant planets accrete so much hydrogen and
helium, while the terrestrial planets did not?
observation, hypothesis, experiment Answer: In the simplest form of
the scientific method, which of the following correctly describes the
sequence in which science proceeds?
They are "falling" along the same orbit as the space station.
Answer: Why do astronauts feel "weightless" inside the International
Space Station?
Radio waves are better at penetrating dust and gas than shorter
wavelengths. Answer: Why do astronomers typically search for signs
of intelligent life in radio wavelengths?
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,2
always above the horizon. Answer: Circumpolar stars are stars that
are
Earth catches and passes another planet in its orbit. Answer: In the
heliocentric model, retrograde motion occurs when:
the sunlight we receive being more direct, compared to winter AND
the Sun being higher in the sky, making the days longer Answer:
The summer season in Norman is caused by:
the differential gravity of the Moon and Sun. Answer: Tides are
caused by:
Geological activity can erase evidence of older cratering. Answer:
Why is crater counting an imperfect measure of a terrestrial planet's
age?
the planet's distance from the Sun Answer: What is the most
important factor in determining whether or not a planet will be
rocky like terrestrial planets or gaseous like giant planets?
law Answer: Scientists refer to a well-developed model that has
been tested many times in many different ways as a:
Weather refers to short term changes, while climate refers to
changes that occur over centuries. Answer: What is the difference
between weather and climate?
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, 3
The force would decrease. Answer: How would the force of gravity
change if the mass of the Earth AND the distance between the Earth
and Sun were BOTH doubled?
decreases; decreases Answer: As the wavelength of light increases,
the frequency _____________ and the energy _____________.
Plants and algae on Earth created oxygen via photosynthesis,
allowing oxygen to build up in Earth's atmosphere. Answer: Why is
Earth's atmosphere so oxygen-rich, compared to Venus and Mars?
Phases of Venus Answer: Which of the following observations
provided the most direct challenge to the geocentric model of solar
system orbits?
Methods of finding exoplanets are more effective at finding larger
planets. Answer: Before the Kepler mission, why were the majority
of known exoplanets giant planets?
The photon will not be aborbed. Answer: For a certain atom, the
energy difference between the lowest energy level and the first
excited level is 3 arbitrary units. What happens to an electron in the
lowest energy level if we shine a beam of photons with an energy
of 2 units on the atom?
the distance from a star where liquid water can exist Answer: What
is the habitable zone?
© 2025 All rights reserved
OU ASTR 1514 Final Exam Study Guide
Questions with Correct Answers | Updated
(100% Correct Answers)
planet must pass directly in front of the star Answer: Detecting a
planet around another star using the transit method is difficult
because the
The terrestrial planets did not grow massive enough to hold on to
those gases before the solar winds blew them out of the disk.
Answer: Why did the giant planets accrete so much hydrogen and
helium, while the terrestrial planets did not?
observation, hypothesis, experiment Answer: In the simplest form of
the scientific method, which of the following correctly describes the
sequence in which science proceeds?
They are "falling" along the same orbit as the space station.
Answer: Why do astronauts feel "weightless" inside the International
Space Station?
Radio waves are better at penetrating dust and gas than shorter
wavelengths. Answer: Why do astronomers typically search for signs
of intelligent life in radio wavelengths?
© 2025 All rights reserved
,2
always above the horizon. Answer: Circumpolar stars are stars that
are
Earth catches and passes another planet in its orbit. Answer: In the
heliocentric model, retrograde motion occurs when:
the sunlight we receive being more direct, compared to winter AND
the Sun being higher in the sky, making the days longer Answer:
The summer season in Norman is caused by:
the differential gravity of the Moon and Sun. Answer: Tides are
caused by:
Geological activity can erase evidence of older cratering. Answer:
Why is crater counting an imperfect measure of a terrestrial planet's
age?
the planet's distance from the Sun Answer: What is the most
important factor in determining whether or not a planet will be
rocky like terrestrial planets or gaseous like giant planets?
law Answer: Scientists refer to a well-developed model that has
been tested many times in many different ways as a:
Weather refers to short term changes, while climate refers to
changes that occur over centuries. Answer: What is the difference
between weather and climate?
© 2025 All rights reserved
, 3
The force would decrease. Answer: How would the force of gravity
change if the mass of the Earth AND the distance between the Earth
and Sun were BOTH doubled?
decreases; decreases Answer: As the wavelength of light increases,
the frequency _____________ and the energy _____________.
Plants and algae on Earth created oxygen via photosynthesis,
allowing oxygen to build up in Earth's atmosphere. Answer: Why is
Earth's atmosphere so oxygen-rich, compared to Venus and Mars?
Phases of Venus Answer: Which of the following observations
provided the most direct challenge to the geocentric model of solar
system orbits?
Methods of finding exoplanets are more effective at finding larger
planets. Answer: Before the Kepler mission, why were the majority
of known exoplanets giant planets?
The photon will not be aborbed. Answer: For a certain atom, the
energy difference between the lowest energy level and the first
excited level is 3 arbitrary units. What happens to an electron in the
lowest energy level if we shine a beam of photons with an energy
of 2 units on the atom?
the distance from a star where liquid water can exist Answer: What
is the habitable zone?
© 2025 All rights reserved
