GENERAL KNOWLEDGE

GK

SOLAR SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Astronomers have formulated many models of the solar system over time. Ptolemy’s early geocentric model gave way to Copernicus’ heliocentric model on which the modern solar system model is based. Which statement best describes why models of the early Ptolemy solar system were replaced by the Copernican model?
A
Computers are better able to develop scientific models than humans are.
B
A more precise age has been established for the formation of the solar system.
C
More direct observations have enabled scientist to change solar system models.
D
Scientist established that a different set of laws govern the motion of our solar system than govern the motion of other solar systems.
Explanation: 

Detailed explanation-1: -In summary, Copernicus’s model of the solar system contains approximately the same number of epicycles as Ptolemy’s, the only difference being that Copernicus’ epicycles are much smaller than Ptolemy’s.

Detailed explanation-2: -Ptolemy placed the Earth at the centre of his geocentric model. Using the data he had, Ptolemy thought that the universe was a set of nested spheres surrounding the Earth. He believed that the Moon was orbiting on a sphere closest to the Earth, followed by Mercury, then Venus and then the Sun.

Detailed explanation-3: -The most important feature of Ptolemy’s model was that the Earth was at the centre – the geocentric model of the universe.

There is 1 question to complete.