Matching Pairs Speed and velocity (D)Online version Speed and velocity by Christopher Tamez 1 Speed is 2 3 km is an example of 3 An Acceleration is an 4 Displacement is 5 3 km north is an example of 6 An example of vector: 7 An example of scalar: 8 Velocity is 9 The SI unit of speed is a change in an objects position. distance covered divided by time taken speed Any change in speed! Which means it could be an increase or a decrease in speed. velocity distance displacement divided by time taken displacement m/s