Speed is the time taken to travel the distance. Speed is calculated by: Speed= distance/time. It has only magnitude but no direction so it is a scalar quantity.
Vector is the displacement travelled by an object in a time. It is called vector quantity as it has both magnitude and direction. Velocity is measured by: Velocity = Displacement/time.
|The rate at which someone or something moves or operates or is able to move or operate||The speed of something in a given direction|
|Synonyms||Celerity, alacrity, tear, run, quicken||Rapidity, rush, momentum, clip, fleetness, quickness|
|Antonyms||Delay, slow, deliberation, halt, hesitate||Awkwardness, deliberateness, dilatoriness, ineptness, dally|
|Types||Its types are:
|Word origin||The word origin speed was originated from Old English spēd (noun), spēdan (verb), from the Germanic base of Old English spōwan ‘prosper, succeed’, a sense reflected in early usage.||The word velocity was originated from Late Middle English: from French vélocité or Latin velocitas, from velox, veloc- ‘swift’.|
|Types of quantity||It is a scalar quantity.||It is a vector quantity.|
|Change of Direction||The object can change direction and the average speed will continue to count.||The object must follow one direction, if the direction of an object changes so do the velocity.|
|Example in Sentence||