Since a picture (or animated GIF in this case) is worth a thousand words, I will begin by providing an example of the problem I am trying to solve:
As you can see, the fragments of the monkey never change orientation as they fall and "bounce" off of the plane that they are colliding with.
I created this animation by adding a monkey to the scene and using the Object->Quick Effects->Quick Explode tool. The fragments never change their orientation, which is grossly unrealistic.
How do I fix this?