Which list provides an accurate order for changing models of our solar system, starting with the oldest and ending with the most recent changes? (1 point)

Question

Responses

elliptical orbits, geocentric, heliocentric
elliptical orbits, geocentric, heliocentric

elliptical orbits, heliocentric, geocentric
elliptical orbits, heliocentric, geocentric

geocentric, heliocentric, elliptical orbits
geocentric, heliocentric, elliptical orbits

heliocentric, geocentric, elliptical orbits

Answer 1

The correct order, starting with the oldest model and ending with the most recent changes, is:

geocentric, heliocentric, elliptical orbits

This sequence represents the following transitions in the historical understanding of our solar system:

1. Geocentric Model: This ancient model, formalized by Ptolemy and others, placed Earth at the center of the universe, with the sun, moon, planets, and stars orbiting around it.

2. Heliocentric Model: Nicolaus Copernicus proposed a model with the sun at the center of the universe (later understood to be the solar system), with Earth and the other planets orbiting around it. This was a revolutionary shift from the geocentric model.

3. Elliptical Orbits: Johannes Kepler further refined the solar system model by determining that the planets move around the sun in elliptical, not circular, orbits. This understanding improved upon the heliocentric model with a more accurate description of planetary motion.

Thus, the accurate order is "geocentric, heliocentric, elliptical orbits."