Intro to Astronomy Final Exam Study Guide Test.
Why were ancient peoples unable to detect stellar parallax?
• A. They did detect it, but they rejected the observations
• B. They could not see distant stars
• C. They did not have the ability to measure small enough angles
• D. They di...
Intro to Astronomy Final Exam Study
Guide Test.
Why were ancient peoples unable to detect stellar parallax?
• A. They did detect it, but they rejected the observations
• B. They could not see distant stars
• C. They did not have the ability to measure small enough angles
• D. They did not observe for long enough periods of time
• E. They looked in the wrong direction - CORRECT ANSWER C
How did Eratosthenes estimate the size of the Earth?
• A. He sent fleets of ships around the Earth
• B. He observed the duration of a solar eclipse
• C. He measured the size of Earth's shadow on the Moon during a
lunar eclipse
• D. He compared the maximum altitude of the Sun in two cities at
different latitudes
• E. We don't know: his writings were destroyed - CORRECT ANSWER D
What did Tycho Brahe do that advanced
astronomy significantly?
• A. Realized that orbits didn't have to be circles, they
could be ellipses
• B. Made more accurate observations of planets than
anyone before him
• C. Thought up the idea of circles moving on circles
(epicycles) to explain planet's motion
• D. Claimed that stars do not have parallax
,• E. Believed that Ptolemy was correct - CORRECT ANSWER B
Whose suggestion that the Sun is the center of
the solar system was first taken seriously by many people?
• A. Copernicus
• B. Tycho
• C. Kepler
• D. Galileo
• E. Ptolemy - CORRECT ANSWER A
What did Johannes Kepler do?
• A. Came up with a theory-elliptical orbits-that explained
Tycho's accurate data
• B. Found that planets don't orbit at constant velocity-they
speed up when nearer the Sun
• C. Discovered the relationship between orbital period and
a planet's distance from the Sun
• D. Worked with Tycho Brahe
• E. All of the above - CORRECT ANSWER E
Who discovered that Jupiter has moons?
• A. Ptolemy
• B. Galileo
• C. Aristotle
• D. Kepler
• E. Tycho - CORRECT ANSWER B
If the Moon is rising at midnight, the phase of the Moon must
be
, • A. full
• B. first quarter
• C. waning crescent
• D. waxing crescent
• E. third quarter - CORRECT ANSWER E
Who discovered that Venus has phases like the
Moon?
• A. Ptolemy
• B. Galileo
• C. Aristotle
• D. Kepler
• E. Tycho - CORRECT ANSWER B
Kepler's 3rd law: p2 = a
3
If a = 4, p =
• A. 1
• B. 2
• C. 4
• D. 8
• E. 20 - CORRECT ANSWER D
Kepler's 3rd law: p2 = a
3
If p = 1000, a =
• A. 1
• B. 3
• C. 10
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