The Greatest Inaccuracy in Copernicus's Theory of the Solar System

question 96

Multiple Choice

The greatest inaccuracy in Copernicus's theory of the solar system was that he

• A) placed the planets in circular orbits.
• B) placed the planets on epicycles,the centers of which followed orbits around Earth.
• C) did not allow for retrograde motion.
• D) assumed that the planets move in elliptical orbits with constant speeds rather than variable speeds.

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Definitions:

Hair Length

A physical measurement referring to the length of hair strands from their roots to their ends.

Automobile

A wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor.

Correlation Coefficient

A statistical measure that calculates the strength and direction of a linear relationship between two variables, ranging from -1 to 1.

Relationship

The manner through which two or more ideas, items, or individuals are linked, or the condition of being linked.