The document discusses theories of falling bodies from Aristotle to Newton. Aristotle believed that heavier objects fall faster and that objects fall at different speeds depending on whether falling through earth, water, air or fire. Galileo later determined that in a vacuum all objects fall at the same rate, regardless of weight. Newton furthered understanding by describing that the distance an object falls is proportional to the square of the time it has been falling.

1. Motion: Falling Bodies

6. Aristotle

8. Earth Water Air Fire

11. Galileo

12. fall faster? or slower?

13. in a vacuum, all objects fall at the same rate

18. water clock

20. Distance travelled

21. Distance fallen is proportional to the square of the time 1 4 9 16 25

22. Isaac Newton