Cscc- Astronomy Exam 1 Study Questions And Answers With Complete Solutions Graded A 2024

Horizon {Ans: The boundary between the sky and earth}Force {Ans: Changes an object's momentum causing acceleration}What Greek Astronomer Improved Plato's "constant speed in perfect circles" theory? {Ans: Eudoxus; He inferred that the Sun, the Moon and the Planets all have their own nested sphere}Copernicus {Ans: Born in Torun, Poland on February 19, 1473}Local Group {Ans: A small cluster of galaxies}Power {Ans: The rat of energy transfer measured in watts}