1. a) Why do scientists consider Einstein's General Theory of Relativity to be a better theory of gravity than Newton's theory of gravity? The two theories always make very different predictions, and only Einstein's theory works. Einstein's theory is newer, and scientists alvways prefer newer theories. Newton's theory was never useful, so it had to be replaced by something. Einstein's gravity makes correct predictions in a few cases where Newton's theory does not. 1. b) If an interstellar gas cloud shrinks in size, what does the law of conservation of energy predict it will do? continue shrinking heat up spin slower spin faster cool off 1. c) If an interstellar gas cloud shrinks in size, what does the law of conservation of angular momentum predict it will do? continue shrinking cool off spin faster heat up spin slower

1. a) Why do scientists consider Einstein's General Theory of Relativity to be a better theory of gravity than Newton's theory of gravity? The two theories always make very different predictions, and only Einstein's theory works. Einstein's theory is newer, and scientists alvways prefer newer theories. Newton's theory was never useful, so it had to be replaced by something. Einstein's gravity makes correct predictions in a few cases where Newton's theory does not. 1. b) If an interstellar gas cloud shrinks in size, what does the law of conservation of energy predict it will do? continue shrinking heat up spin slower spin faster cool off 1. c) If an interstellar gas cloud shrinks in size, what does the law of conservation of angular momentum predict it will do? continue shrinking cool off spin faster heat up spin slower