The Pendulum Experiment is an experiment about gravity. Pendulums or pendula if we are being exact! For many years they have been used for keeping time. If you pull back a pendulum and then let it go, the time it takes to swing over and then return back to its starting position is one period. They follow some simple mathematical rules and we are going to find out how they work.
By: Marshall Brain. As we stated on the previous page, the only thing affecting the period of a pendulum is the length of that pendulum. You can prove this fact to yourself by performing the following experiment. For this experiment you will need:. For the weight you can use anything. In a pinch, a coffee mug or a book will do -- it doesn't really matter. Tie the string to the weight.
Ring around the Rosie. Units serve as guides to a particular content or subject area. Nested under units are lessons in purple and hands-on activities in blue. Note that not all lessons and activities will exist under a unit, and instead may exist as "standalone" curriculum.
Introduction Did you know that playground swings can provide a good lesson in physics—as well as lots of fun? The back-and-forth motion of a swing is an example of a pendulum. We see pendulums in other areas of our lives as well, such as in grandfather also known as longcase clocks. But pendulums can do more than provide fun at recess and help tell the time—among other scientific applications, they can show that the earth is huge! This is because the swinging motion of a pendulum is due to the force of gravity generated by the earth's size.