11 terms

motion

when the distance between an object and a stationary reference point is changing

distance

how far an object moves from a reference point, the SI unit of length or distance is the meter (m)

displacement

the distance and direction of an object's change in position from the starting point.

speed

the distance an object travels per unit of time.

average speed

the total distance traveled divided by the total time of travel.

instantaneous speed

the speed of an object at a given point in time. Ex: speedometer data

derived units

units of measurement that are created from base units via dimensional analysis. Ex: km/hr.

velocity

the speed of an object including the direction of its motion. Ex: storms and planes

acceleration

the rate of change of velocity: change in speed divided by change in time.

negative acceleration

the change in acceleration when objects slow down

positive acceleration

the change in acceleration when objects speeds up