1. The document summarizes key concepts from Chapter 2 of "The Ordered Universe" including Newton's laws of motion and gravity, Kepler's laws of planetary motion, Galileo's experiments with falling objects, and the universal law of gravitation. 2. It introduces important figures like Galileo, Kepler, Newton and their contributions to the development of modern astronomy, mechanics and the understanding of gravity. 3. Newton's laws of motion and universal law of gravitation can predict the motion of objects on Earth and in space.

1. The Ordered Universe Chapter 2 Great Idea: Newton’s laws of motion and gravity predict the behavior of objects on Earth and in space

3. The Night Sky

6. Stonehenge

9. The Birth of Modern Astronomy

11. The Historical Background: Ptolemy

13. The Historical Background: Copernicus

15. Kepler’s First Law

16. The Birth of Mechanics

18. Telescopes Used by Galileo Galilei

22. Galileo’s Falling-Ball Apparatus

24. Accelerated Motion of a Falling Apple

25. Equations Relating d,v,a , and t

27. Isaac Newton and the Universal Laws of Motion

29. Hammer Thrower

32. Newton’s Laws of Motion at Work

33. Newton’s Laws of Motion at Work

34. Newton’s Laws at Work

35. Momentum

37. The Law of Conservation of Linear Momentum

38. The Conservation of Angular Momentum

39. The Universal Force of Gravity

41. The Influence of the Force of Gravity

43. The Cavendish Balance

46. Halley’s Comet in 1985