ANT100Y1 Lecture Notes - Lecture 8: Tidal Locking, Tidal Force

• School: UTSG
• Department: Anthropology
• Course: ANT100Y1
• Professor: Shawn Lehman

Document Summary

English physicist said to be the greatest scientist who every lived. Newton took kepler"s descriptive laws and explained why they worked. Newton realized that all motion could be described using 3 simple laws. 1st law objects move at a constant speed and direction unless acted on by an external force: until something else does something to it, it will move in a straight line. 2nd law force = mass x acceleration (f=ma) imagine you throw a baseball in space, far from any other objects. You will move in the direction opposite to the ball"s motion, but slower than the ball. 3rd law if one body exerts a force on another, the other body will exert a force of equal strength but opposite direction. Newton figured out the basis of kepler"s laws. Kepler"s laws tell us the possible shapes orbits can take, but not why things orbit in the first place.