Answer:
If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It will also stop if it hits something, like a player's stick or a goalpost.
Explanation:
A good example would be a ball rolling along a flat surface. Since the ball is circular it will roll for a while but will stop after some distance. The force that caused this ball to stop is called friction. There are other things like air resistence but that is still considered friction. If you don't understand anything, please don't hesitate to ask.
