The terms speed and velocity are sometimes confused although they have different meanings.
 
What is it?
How is it measured?
speed Distance covered by a body per unit of time. It is shown on the speedometer of a car, e.g.: 20 km/h
velocity Distance covered by a body per unit of time in a determined direction and with a determined orientation. Its is shown by the speedometer of the car and by the situation on the road:
e.g.: 20 km/h on the E90 highway going towards Madrid
The visual in context

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