Rotational motion in physics - some examples to try

For any physics classes that do rotational motion, with minimal supplies and materials perhaps some of the activities listed in this lesson could be used as demonstrations or lab examples. The big ideas for rotations is that one or more forces acting on an object or system must create a torque on the object in order to change the rotational motion of the object, that the shapes of objects matter because different shapes have different moments of inertia, and that angular momentum is conserved when there is no external torques acting on an object or system. Give some a try!