“What Moves You, Aristotle
Who was the Greek philosopher who believed objects moved because of their "nature" or "purpose"?
ANSWER: (Who is Aristotle?)
What did the Ancient Greeks believe the stars were attached to?
ANSWER:(The celestial sphere)
Did the Ancient Greeks believe the Earth moved?
ANSWER:
No, they believed it was stationary
Which shape did most Greek philosophers agree best described the Earth?
ANSWER:(Sphere)
What is the name of the Earth-centered model of the universe?
ANSWER:
(Geocentric model)
According to Aristotle, why does a rock fall to the ground?
ANSWER:(Because it seeks its natural place – the center of the universe/Earth)
What daily motion did they attribute to the celestial sphere?
ANSWER:
(Rotation around the Earth once per day)
Which Greek philosopher suggested the Earth might revolve around the sun?
ANSWER:
(Aristarchus)
Who first provided evidence for a spherical Earth using the shadow on the moon during an eclipse?
ANSWER: (Aristotle)
Who is the famous astronomer who developed a detailed geocentric model with epicycles?
ANSWER:
(Ptolemy)
What two types of motion did Aristotle describe?
ANSWER: (Natural motion and violent motion)
What is the name for the imaginary line the sun follows through the sky?
ANSWER:
(The ecliptic)
What is retrograde motion?
ANSWER: (When a planet appears to move backward in the sky)
Who was Plato's famous student who expanded on his ideas about a spherical Earth?
ANSWER:
(A: Aristotle)
What is the name of the Sun-centered model?
ANSWER: (Heliocentric model)
Which later scientist disproved many of Aristotle's views on motion?
ANSWER: (Who is Galileo?)
What star did ancient navigators use because it appeared "fixed"?
ANSWER:
(Polaris, the North Star)
What did the Greeks use to explain retrograde motion in the geocentric model?
ANSWER:(Epicycles)
What natural event did Aristotle use as evidence for a spherical Earth?
ANSWER: (A: Lunar eclipse)
What model suggest the following:
Celestial motions are uniform,infinite and circular.
The planets including the fixed stars,revolved around the sun,which is considered the center of the universe and the nearest star to earth.
ANSWER: Copernican Model
What was Aristotle’s belief about the speed of falling objects?
ANSWER: (He believed heavier objects fall faster than lighter ones)
Why did the Greeks believe the celestial sphere was perfect and unchanging?
(Because it was in the heavens, thought to be divine and eternal)
Why was the idea of a moving Earth rejected by most ancient thinkers?
ANSWER: (Because they believed such motion would produce observable effects, like strong winds)
What force causes planets and stars to form spherical shapes?
ANSWER: (A: Gravity)
What were the competing models of the universe?
Eudoxus
Aristotelian Model
Ptolemaic model
Aristarchus model
Copernical Model