A broken CD or DVD or other type of optical disc is a serious problem and one that will likely lead to loss of information stored on this media. A broken optical disc refers to a disc that has split into two or more pieces or perhaps a disc simply missing one piece.
A motion detector is a device that detects moving objects, particularly people. A motion detector is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
In this experiment you will use a Motion Detector to observe the back and forth motion of the following five objects: Oscillating pendulum. Dynamics cart rolling up and down an incline. Student jumping into the air. Mass oscillating at the end of a spring. Ball tossed into the air. objectives.