Retrograde Motion Was Important in the Development of Our Understanding

question 134

Multiple Choice

Retrograde motion was important in the development of our understanding of the solar system because

• A) it was not discovered until 1920.
• B) it cannot be described with the geocentric model.
• C) its description in terms of the heliocentric model is a great simplification in comparison to its description in terms of the geocentric model.
• D) it happens only about once per century.

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Definitions:

Communication Stages

The phases through which communication passes, including initiation, development, maintenance, and conclusion.

Attention

The cognitive process of selectively concentrating on one aspect of the environment while ignoring other things.

Interest

The cost of borrowing money, typically expressed as a percentage of the amount borrowed, or the attention and curiosity about a topic.

Desire

A strong feeling of wanting to have something or wishing for something to happen.