Distant vs. displacement

Distance- how far you go, or the total length travelled.

Example: I fell down a 5 meter hill. I then ran back up, and fell again. What do I have: 15 Meters Travelled, and a headache. 

Displacement- the distance from the starting point, and where you are now.

Example: I ran down one block, ran down another, and came back one block. My total distance is 3 blocks, but my displacement is 1 block because I am one block away from my starting point.

Yay