What Contribution to Astronomy Was Made by Tycho Brahe

question 13

Multiple Choice

What contribution to astronomy was made by Tycho Brahe?

• A)The planets' orbits around the Sun are ellipses, not circles.
• B)The Earth is not the center of the Universe.
• C)His observations of planetary motion with great accuracy proved circular orbits could notwork.
• D)His telescope revealed the moons of Jupiter before Galileo noted them.
• E)Retrograde motion must be explained by epicycles larger than those of Ptolemy.

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Definitions:

T-scores

Standardized scores with a mean of 50 and a standard deviation of 10, used to compare an individual's score against a normative sample.

Grade Equivalents

A metric used in education to compare a student's test score with the average scores of students in other grades.

NCEs

Normal Curve Equivalents, a type of standardized score used in educational assessments to compare student performance across different age groups and grades.

Bell-shaped Curve

A graphical depiction of a normal distribution of data, where the bulk of data points lie near the mean, creating a symmetrical bell shape.