The Big Bang 165 Diagrams A and B below each represent a different way of thinki

Question

The Big Bang 165 Diagrams A and B below each represent a different way of thinking about how very large regions of the universe change over time. The dots in each diagram represent pieces of matter. 1) Which diagram, A or B, is a better representation of the universe we observe? Explain your reasoning. In Diagram A, is the universe becoming bigger, smaller, or staying the same size over time? 2) In Diagram B, is the universe becoming bigger, smaller, or staying the same size over time? 3) LECTURE-TUTORIALS FOR INTRODUCTORY ASTROMOMY THIRD EDITION © 2013 Pearson Education, nc.

Explanation / Answer

4. Student B is correct as the figure A shows the Big Bang and figure B shows the expansion of matter not universe. The red drop effect is best suited for the phenomenon in figure B.

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