How do you create interactions with other objects? I have this little Ball i made up, however i have a problem, I can get the ball to interact with other object, however i cannot get the test objects to move from the impact, what am i doing wrong? 

Edit:

I placed a cylinder in the scene however the ball when making the impact with the cylinder wraps itself around the cylinder, i do not want that, i need for the cylinder to knock over or have other objects in the path to interact with the ball
You need to use rigid body physics to do what you want.


Select your sphere, then add Dynamic Rigid Body to it as shown below:





Then select your ground plane and add Passive Rigid body to it as shown below:





This is the result, the sphere will fall and when it hits the plane it will land and stop as shown below:




Updated .blend file can be found here: