Question

defination of speed and velocity question for general science

Answer 1

$<b> <u> <i>$
◆Holla! Mate◆
◆here is your answer◆

【Speed and velocity】are methods used to measure movement. ... It is a scalar measurement because speed does not include direction. Velocity is the measure of speed in a direction. 
◆Velocity is a vector because it measures magnitude and direction. The formula for speed and velocityequals distance divided by time.

Answer 2

Speed is a scalar quantity -- it is the magnitude of the velocity. Speed is measured in units of distance divided by time, e.g. miles per hour, feet per second, meters per second, etc....

Velocity is a vector quantity -- when giving the velocity we must specify the magnitude (the speed) and the direction of travel. For example you might drive 100km/hr (the speed) in a northerly direction.