Changes

*[[Force]]s (<math>\overrightarrow{F}</math>) - A push or a pull which has a [[magnitude]] (size) and a direction.*[[Displacement]] (<math>\overrightarrow{s}</math>) - The distance and direction from one point in space to another.*[[Velocity]] (<math>\overrightarrow{v}</math>) - The [[speed]] and direction that an [[object]] is moving.*[[Acceleration]] (<math>\overrightarrow{a}</math>) - The rate of change of [[velocity]] and the direction of this change.If a quantity does not include direction, then it is called a [[scalar]], not a [[vector]]. ===Representing Vectors===: [[Vector]]s are written with either an underline (<math>\underline{F}</math>,<math>\underline{s}</math>,<math>\underline{v}</math>,<math>\underline{a}</math>) or an arrow above (<math>\overrightarrow{F}</math>,<math>\overrightarrow{s}</math>,<math>\overrightarrow{v}</math>,<math>\overrightarrow{a}</math>): [[Vector]]s are often drawn on [[diagram]]s. They are drawn as an arrow because an arrow can show the [[magnitude]] (the length of the arrow) and the direction (which way the arrow is pointing). : Using a [[diagram]] two [[vector]] quantities can be added together by drawing the arrows end to end.