A pendulum is made from a string that is attached to “the ceiling” in two places with a mass hanging in the middle to make a “V”. The pendulum is pulled back a given distance and released. The maximum speed attained by the mass is found. This involves an equation from rotational motion (v=w r)

In the video the lab is performed followed by the data being presented on a graph, which students use to complete a lab sheet. When the graph is displayed, all the data needed to complete the sheet is presented both visually and verbally, including the values and units needed for calculations. What the information represents is also explained to the student.