Centripetal Force a Glass of Water Moving in a Vertical Circle Demo (430K)
A glass is partially filled with red colored water. The glass is then swung in a vertical circle. When the glass reaches the top of its arc will the water fall out?

Free Rotational Motion of simulated Hammer ( 268K)
A hammer is tossed into the air in such away that it has both rotational and translational motion. This movie demonstrates that the motion of and object can be reduced to rotational motion about its center of mass and linear kinematic motion of its center of mass.

Surface of Liquid under Rotation (700K)
A tank is partially filled with a liquid and then spun up to a constant rate of rotation to observe the shape of the liquid's surface. In the second part a small wooden ball is place on surface of the water to see if it will roll down the surface.