New York

Motion is the action of changing location or position used in Physics (as opposed to movement in ordinary speech). One often has to deal with this term in reality.

First, you need to learn some basic terms. You probably know about position, distance and time. Use the link to watch a video lesson and find out what displacement, velocity and acceleration are.


A teacher of physics living in New York usually goes to his favourite Japanese grocery store on Saturday. His route is shown on the map and follows these steps:

follow the Hudson River upriver → cross the river using the George Washington Bridge → reverse direction and head downriver

Work out his actual displacement.

Displacement: ____ km