Q4 QUIZ 02 SLM 1

What observation during lunar eclipses led the Greeks to believe that the Earth is round?

• The moon's disappearance
  

• The change in the moon's color
  

• The sudden drop in temperature
  

• The round shadow cast on the moon's surface by the Earth

How did the Greeks use the length of shadows cast by identical poles to prove the Earth is round?

• By measuring the angle of inclination
  

• By observing the variations in shadow lengths at different locations
  

• By calculating the speed of sunlight
  

• By comparing shadow lengths at different times of the day

According to Aristotle, what is the terrestrial domain composed of?

• Ether
  

• Four elements: fire, air, water, and earth
  

• Celestial spheres
  

• Perfect circular motions

What observation supports the Ptolemaic system's claim that the Earth does not move?

• 
  Parallax of the stars
  

• Changes in the apparent size of stars
  

• Consistency in basic physics observations on Earth
  

• The Earth's rotation about its axis

What did Tycho Brahe's observation of a supernova explosion suggest about celestial objects?

• Stars are static and unchanging
  

• Stars are perfect spheres
  

• Stars are constantly in motion
  

• Stars are ethereal in nature

How did Brahe's observations contribute to Kepler's understanding of planetary motion?

• 
  By proving the geocentric model
  

• By demonstrating the elliptical orbits of planets
  

• By confirming the perfection of circular orbits
  

• By establishing the Earth as the center of the Universe

According to Kepler's first law of planetary motion, what shape are planetary orbits?

• 
  Circle
  

• Ellipse
  

• Parabola
  

• Hyperbola

What principle does Kepler's second law of planetary motion describe?

• Conservation of energy
  

• Conservation of angular momentum
  

• Uniform circular motion
  

• Equal areas swept in equal time intervals

Kepler's third law of planetary motion suggests a relationship between:

• Orbital period and distance from the Sun
  

• Orbital eccentricity and inclination
  

• Orbital speed and planet's mass
  

• Orbital radius and gravitational force

How did Kepler's laws challenge the prevailing philosophical framework of celestial motion?

• 
  By reinforcing the concept of celestial perfection
  

• By introducing the idea of celestial imperfection
  

• By replacing circular orbits with elliptical ones
  

• By aligning with the two-domain view of the Universe