Scenario:Kirk and Spock decide to play ping-pong in space. The ball bounces back and forth between their paddles, when a Klingon warship approaches. In their haste to return to the Enterprise, they leave their paddles and the ball behind. After the battle (in which the Federation and the Klingon Empire both claim victory), Kirk and Spock look out and see the ball still bouncing back and forth between the paddles. Make a simulator to show the paddles and ball.
InterActivity:Download the zip and build this simulator. It REALLY is easy.
Click on the play button (bottom left) to start the ball bouncing.