The ball wants to get to the round exit, but cannot, because the field is empty; if you give the command to start, the ball will simply fall down into Draw the RailBall Physics. To complete the level's task, use a set of different elements located on the vertical panel on the left. If you want to see the entire set, click on the open book in the horizontal panel below. Select the appropriate parts, these could be pipes, rails, platforms, and so on. Place them on the field and click on the start button to start the process in Draw the RailBall Physics.
