| A | B |
|---|
| magnitude | size; extent; dimensions |
| vector | a quantity possessing both magnitude and direction, represented by an arrow |
| scalar | a quantity possessing only magnitude |
| direction | the line along which anything lies, faces, moves, etc., with reference to the point or region toward which it is directed |
| heading | the compass direction toward which a traveler or vehicle is or should be moving; course. |
| tail | the front part of the arrow that represents a vector |
| head | the back part of the arrow that represents a vector |
| compass | A device used to determine geographical direction |
| angle | the space within two lines or three or more planes diverging from a common point |
| degree | a unit of measure, as of temperature or pressure, marked off on the scale of a measuring instrument: |
| bearing | term used in navigation to simply refer to our direction of motion |
| notation | a system of graphic symbols for a specialized use, other than ordinary writing |
| length | the longest extent of anything as measured from end to end |
| kinematics | the branch of mechanics that deals with pure motion |
| displacement | the linear or angular distance in a given direction between a body or point and a reference position. |
