The Copernican System Was No More Accurate Than the Ptolemaic

question 9

Multiple Choice

The Copernican system was no more accurate than the Ptolemaic system in predicting the positions of the planets because of a key factor unchanged from the Ptolemaic system.What was that factor?

• A)The Copernican system assumed the Earth was at rest at the centre.
• B)The Copernican system used elliptical planetary orbits.
• C)The Copernican system used uniform circular motion.
• D)The Copernican system assumed all planets orbited the Sun.

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