Question

1. the diagram below represents a simple geocentric model. which object is represented by the letter x? (not drawn to scale) a) earth b) sun c) moon d) polaris 2. which object orbits earth in both the earth - centered (geocentric) and sun - centered (heliocentric) models of our solar system? a) the moon b) the sun c) venus d) polaris 3. the diagram below shows one model of a portion of the universe. what type of model does the diagram best demonstrate? a) a heliocentric model, in which celestial objects orbit earth b) a heliocentric model, in which celestial objects orbit the sun c) a geocentric model, in which celestial objects orbit earth d) a geocentric model, in which celestial objects orbit the sun 4. base your answer to the following question on the diagram which represents the elliptical orbit for one planet around the sun and f2. the arrangement and movement a) spiral model c) geocentric model

Explanation:

1. In a geocentric model, Earth is at the center. So the object represented by X is Earth.
2. The Moon orbits Earth in both geocentric and heliocentric models. The Sun is the center - of the solar system in the heliocentric model and not an object orbiting Earth. Venus orbits the Sun. Polaris is a star far from our solar - system.
3. The diagram shows Earth at the center with celestial objects orbiting it, which is a geocentric model.

Answer:

1. A. Earth
2. A. the Moon
3. C. a geocentric model, in which celestial objects orbit Earth