Astronomy 101 Answers to Test 3 Review

Astronomy 101 Answers to Test 3 Review - Astronomy 101...

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Questions and Answers to Part 1 of Test Review! 1) Why do we know the universe is curved? Because of the Solar Eclipse Experiment 2) How does the Solar Eclipse Experiment prove the universe is curved? The experiment shows that if you have 2 different points at least one of them will be curved; it showed that gravity around a mass if strong enough can case information to change its course of travel slightly. 3) Why did the results of the experiment suggest the universe is curved? Gravity is attractive, and it affects the path our universe takes as it expands. 4) How do we determine curvature? Curvature is determined through a data table, it represents the curve through the universe. Also curvature requires 4 dimensions. 5) How does the universe send information from one point to another? The universe uses particles to send information form on point to another, there is no reference point in the universe. 6) The universe is picks the ________ distance to relay its information, because the universe is _______. Shortest, lazy 7) The universe is __ dimensions; it consists of 3 _______ dimensions, and 1______ dimension. 4, spatial, time 8) Why is the universe 4 dimension? The universe is 4D because it allows for curvature; also it is 4D because of the added time dimension. 9)
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This note was uploaded on 11/02/2010 for the course AST 101 taught by Professor Mohr during the Spring '08 term at University of Alabama at Birmingham.

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Astronomy 101 Answers to Test 3 Review - Astronomy 101...

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